From 5854cdd04163ea7aa454b619708f710cef9e04e8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:46 +0100 Subject: [PATCH 01/14] scsi: a3000: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/811d180950b76c2d95cd080e3c251757ca011380.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/a3000.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c index c3028726bbe4..378906f77909 100644 --- a/drivers/scsi/a3000.c +++ b/drivers/scsi/a3000.c @@ -282,7 +282,7 @@ static int __init amiga_a3000_scsi_probe(struct platform_device *pdev) return error; } -static int __exit amiga_a3000_scsi_remove(struct platform_device *pdev) +static void __exit amiga_a3000_scsi_remove(struct platform_device *pdev) { struct Scsi_Host *instance = platform_get_drvdata(pdev); struct a3000_hostdata *hdata = shost_priv(instance); @@ -293,11 +293,10 @@ static int __exit amiga_a3000_scsi_remove(struct platform_device *pdev) free_irq(IRQ_AMIGA_PORTS, instance); scsi_host_put(instance); release_mem_region(res->start, resource_size(res)); - return 0; } static struct platform_driver amiga_a3000_scsi_driver = { - .remove = __exit_p(amiga_a3000_scsi_remove), + .remove_new = __exit_p(amiga_a3000_scsi_remove), .driver = { .name = "amiga-a3000-scsi", }, From 688bbe398ca63bace6b8fb40b9dbc605c5add034 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:47 +0100 Subject: [PATCH 02/14] scsi: a4000t: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/c15ffc57efebc5da3f7e6dd558d69181e129cafe.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/a4000t.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/a4000t.c b/drivers/scsi/a4000t.c index 5e575afce134..e435fc06a624 100644 --- a/drivers/scsi/a4000t.c +++ b/drivers/scsi/a4000t.c @@ -95,7 +95,7 @@ static int __init amiga_a4000t_scsi_probe(struct platform_device *pdev) return -ENODEV; } -static int __exit amiga_a4000t_scsi_remove(struct platform_device *pdev) +static void __exit amiga_a4000t_scsi_remove(struct platform_device *pdev) { struct Scsi_Host *host = platform_get_drvdata(pdev); struct NCR_700_Host_Parameters *hostdata = shost_priv(host); @@ -106,11 +106,10 @@ static int __exit amiga_a4000t_scsi_remove(struct platform_device *pdev) kfree(hostdata); free_irq(host->irq, host); release_mem_region(res->start, resource_size(res)); - return 0; } static struct platform_driver amiga_a4000t_scsi_driver = { - .remove = __exit_p(amiga_a4000t_scsi_remove), + .remove_new = __exit_p(amiga_a4000t_scsi_remove), .driver = { .name = "amiga-a4000t-scsi", }, From 3becb4cdf1c1250b880d04f00506f185b614c5af Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:48 +0100 Subject: [PATCH 03/14] scsi: atari: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/27a2b133b1b88a9baf51353c511e93a5027f9602.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/atari_scsi.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c index d401cf27113a..d99e70914817 100644 --- a/drivers/scsi/atari_scsi.c +++ b/drivers/scsi/atari_scsi.c @@ -865,7 +865,7 @@ static int __init atari_scsi_probe(struct platform_device *pdev) return error; } -static int __exit atari_scsi_remove(struct platform_device *pdev) +static void __exit atari_scsi_remove(struct platform_device *pdev) { struct Scsi_Host *instance = platform_get_drvdata(pdev); @@ -876,11 +876,10 @@ static int __exit atari_scsi_remove(struct platform_device *pdev) scsi_host_put(instance); if (atari_dma_buffer) atari_stram_free(atari_dma_buffer); - return 0; } static struct platform_driver atari_scsi_driver = { - .remove = __exit_p(atari_scsi_remove), + .remove_new = __exit_p(atari_scsi_remove), .driver = { .name = DRV_MODULE_NAME, }, From 51a41ec6d36e586e978785709d33b22cc8ee455c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:49 +0100 Subject: [PATCH 04/14] scsi: bvme6000: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/63294479a4e745210c078859afa88904fa0b3be8.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/bvme6000_scsi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/bvme6000_scsi.c b/drivers/scsi/bvme6000_scsi.c index 8d72b25535c5..f893e9779e9d 100644 --- a/drivers/scsi/bvme6000_scsi.c +++ b/drivers/scsi/bvme6000_scsi.c @@ -89,7 +89,7 @@ bvme6000_probe(struct platform_device *dev) return -ENODEV; } -static int +static void bvme6000_device_remove(struct platform_device *dev) { struct Scsi_Host *host = platform_get_drvdata(dev); @@ -99,8 +99,6 @@ bvme6000_device_remove(struct platform_device *dev) NCR_700_release(host); kfree(hostdata); free_irq(host->irq, host); - - return 0; } static struct platform_driver bvme6000_scsi_driver = { @@ -108,7 +106,7 @@ static struct platform_driver bvme6000_scsi_driver = { .name = "bvme6000-scsi", }, .probe = bvme6000_probe, - .remove = bvme6000_device_remove, + .remove_new = bvme6000_device_remove, }; static int __init bvme6000_scsi_init(void) From c71ef3d1fb39ee4503b5d3f5e358c6588c071520 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:50 +0100 Subject: [PATCH 05/14] scsi: jazz_esp: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/f71efbe17973c97fd2a1e78f8d7fcf456644510b.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/jazz_esp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/jazz_esp.c b/drivers/scsi/jazz_esp.c index 0c842fb29aa0..494a671fb556 100644 --- a/drivers/scsi/jazz_esp.c +++ b/drivers/scsi/jazz_esp.c @@ -176,7 +176,7 @@ static int esp_jazz_probe(struct platform_device *dev) return err; } -static int esp_jazz_remove(struct platform_device *dev) +static void esp_jazz_remove(struct platform_device *dev) { struct esp *esp = dev_get_drvdata(&dev->dev); unsigned int irq = esp->host->irq; @@ -189,8 +189,6 @@ static int esp_jazz_remove(struct platform_device *dev) esp->command_block_dma); scsi_host_put(esp->host); - - return 0; } /* work with hotplug and coldplug */ @@ -198,7 +196,7 @@ MODULE_ALIAS("platform:jazz_esp"); static struct platform_driver esp_jazz_driver = { .probe = esp_jazz_probe, - .remove = esp_jazz_remove, + .remove_new = esp_jazz_remove, .driver = { .name = "jazz_esp", }, From 0b649224f712cdfb90c8e9c22929dcb55868fc8f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:51 +0100 Subject: [PATCH 06/14] scsi: mac_esp: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/9013c84059b8ccd6a5c8305aa35cfdfa314ba74c.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/mac_esp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/mac_esp.c b/drivers/scsi/mac_esp.c index 3f0061b00494..187ae0a65d40 100644 --- a/drivers/scsi/mac_esp.c +++ b/drivers/scsi/mac_esp.c @@ -407,7 +407,7 @@ static int esp_mac_probe(struct platform_device *dev) return err; } -static int esp_mac_remove(struct platform_device *dev) +static void esp_mac_remove(struct platform_device *dev) { struct mac_esp_priv *mep = platform_get_drvdata(dev); struct esp *esp = mep->esp; @@ -428,13 +428,11 @@ static int esp_mac_remove(struct platform_device *dev) kfree(esp->command_block); scsi_host_put(esp->host); - - return 0; } static struct platform_driver esp_mac_driver = { .probe = esp_mac_probe, - .remove = esp_mac_remove, + .remove_new = esp_mac_remove, .driver = { .name = DRV_MODULE_NAME, }, From 69b43bf38b11cf361a1372281aa0ffe0c5cb2d32 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:52 +0100 Subject: [PATCH 07/14] scsi: mac: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/89ce161dad52d99df07135531512ccecb7f25d14.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/mac_scsi.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c index 2e511697fce3..181f16899fdc 100644 --- a/drivers/scsi/mac_scsi.c +++ b/drivers/scsi/mac_scsi.c @@ -523,7 +523,7 @@ static int __init mac_scsi_probe(struct platform_device *pdev) return error; } -static int __exit mac_scsi_remove(struct platform_device *pdev) +static void __exit mac_scsi_remove(struct platform_device *pdev) { struct Scsi_Host *instance = platform_get_drvdata(pdev); @@ -532,11 +532,10 @@ static int __exit mac_scsi_remove(struct platform_device *pdev) free_irq(instance->irq, instance); NCR5380_exit(instance); scsi_host_put(instance); - return 0; } static struct platform_driver mac_scsi_driver = { - .remove = __exit_p(mac_scsi_remove), + .remove_new = __exit_p(mac_scsi_remove), .driver = { .name = DRV_MODULE_NAME, }, From f0baf76a22049d55a4901c1a933e479c638af94c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:53 +0100 Subject: [PATCH 08/14] scsi: mvme16x: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/1d16e93a498831abd64df8b8cf54fd8872cdd1cd.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/mvme16x_scsi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/mvme16x_scsi.c b/drivers/scsi/mvme16x_scsi.c index 21d638299ab8..e08a38e2a442 100644 --- a/drivers/scsi/mvme16x_scsi.c +++ b/drivers/scsi/mvme16x_scsi.c @@ -103,7 +103,7 @@ static int mvme16x_probe(struct platform_device *dev) return -ENODEV; } -static int mvme16x_device_remove(struct platform_device *dev) +static void mvme16x_device_remove(struct platform_device *dev) { struct Scsi_Host *host = platform_get_drvdata(dev); struct NCR_700_Host_Parameters *hostdata = shost_priv(host); @@ -120,8 +120,6 @@ static int mvme16x_device_remove(struct platform_device *dev) NCR_700_release(host); kfree(hostdata); free_irq(host->irq, host); - - return 0; } static struct platform_driver mvme16x_scsi_driver = { @@ -129,7 +127,7 @@ static struct platform_driver mvme16x_scsi_driver = { .name = "mvme16x-scsi", }, .probe = mvme16x_probe, - .remove = mvme16x_device_remove, + .remove_new = mvme16x_device_remove, }; static int __init mvme16x_scsi_init(void) From e26eec9a4d25752404b35e7700f84834002ee75e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:54 +0100 Subject: [PATCH 09/14] scsi: qlogicpti: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/8242c07f617fc946aab857c9357f540598fe964e.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/qlogicpti.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c index 3b95f7a6216f..5d560d9b8944 100644 --- a/drivers/scsi/qlogicpti.c +++ b/drivers/scsi/qlogicpti.c @@ -1409,7 +1409,7 @@ static int qpti_sbus_probe(struct platform_device *op) return -ENODEV; } -static int qpti_sbus_remove(struct platform_device *op) +static void qpti_sbus_remove(struct platform_device *op) { struct qlogicpti *qpti = dev_get_drvdata(&op->dev); @@ -1438,8 +1438,6 @@ static int qpti_sbus_remove(struct platform_device *op) of_iounmap(&op->resource[0], qpti->sreg, sizeof(unsigned char)); scsi_host_put(qpti->qhost); - - return 0; } static const struct of_device_id qpti_match[] = { @@ -1465,7 +1463,7 @@ static struct platform_driver qpti_sbus_driver = { .of_match_table = qpti_match, }, .probe = qpti_sbus_probe, - .remove = qpti_sbus_remove, + .remove_new = qpti_sbus_remove, }; module_platform_driver(qpti_sbus_driver); From 358987af1bda5c0b6a9aacc0644a108e711266b6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:55 +0100 Subject: [PATCH 10/14] scsi: sgiwd93: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/92114604fd1274073915e515cae15003ff07aa4a.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/sgiwd93.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/sgiwd93.c b/drivers/scsi/sgiwd93.c index 88e2b5eb9caa..b0bef83db7b6 100644 --- a/drivers/scsi/sgiwd93.c +++ b/drivers/scsi/sgiwd93.c @@ -291,7 +291,7 @@ static int sgiwd93_probe(struct platform_device *pdev) return err; } -static int sgiwd93_remove(struct platform_device *pdev) +static void sgiwd93_remove(struct platform_device *pdev) { struct Scsi_Host *host = platform_get_drvdata(pdev); struct ip22_hostdata *hdata = (struct ip22_hostdata *) host->hostdata; @@ -302,12 +302,11 @@ static int sgiwd93_remove(struct platform_device *pdev) dma_free_noncoherent(&pdev->dev, HPC_DMA_SIZE, hdata->cpu, hdata->dma, DMA_TO_DEVICE); scsi_host_put(host); - return 0; } static struct platform_driver sgiwd93_driver = { .probe = sgiwd93_probe, - .remove = sgiwd93_remove, + .remove_new = sgiwd93_remove, .driver = { .name = "sgiwd93", } From 357a7fd2434e857bc3911cfbb02285f8b25e8d24 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:56 +0100 Subject: [PATCH 11/14] scsi: sni_53c710: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/2f4b7366ca00a107a9595514795e909e632980da.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/sni_53c710.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/sni_53c710.c b/drivers/scsi/sni_53c710.c index 678651b9b4dd..9df1c90a24c1 100644 --- a/drivers/scsi/sni_53c710.c +++ b/drivers/scsi/sni_53c710.c @@ -104,7 +104,7 @@ static int snirm710_probe(struct platform_device *dev) return -ENODEV; } -static int snirm710_driver_remove(struct platform_device *dev) +static void snirm710_driver_remove(struct platform_device *dev) { struct Scsi_Host *host = dev_get_drvdata(&dev->dev); struct NCR_700_Host_Parameters *hostdata = @@ -115,13 +115,11 @@ static int snirm710_driver_remove(struct platform_device *dev) free_irq(host->irq, host); iounmap(hostdata->base); kfree(hostdata); - - return 0; } static struct platform_driver snirm710_driver = { .probe = snirm710_probe, - .remove = snirm710_driver_remove, + .remove_new = snirm710_driver_remove, .driver = { .name = "snirm_53c710", }, From 15b016b2d023e4ba3603daa21aa346033c486930 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:57 +0100 Subject: [PATCH 12/14] scsi: sun3: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/84239a68fe06143d1d6fed6c9aaae6a4680ead71.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/sun3_scsi.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c index abf229b847a1..4a8cc2e8238e 100644 --- a/drivers/scsi/sun3_scsi.c +++ b/drivers/scsi/sun3_scsi.c @@ -641,7 +641,7 @@ static int __init sun3_scsi_probe(struct platform_device *pdev) return error; } -static int __exit sun3_scsi_remove(struct platform_device *pdev) +static void __exit sun3_scsi_remove(struct platform_device *pdev) { struct Scsi_Host *instance = platform_get_drvdata(pdev); struct NCR5380_hostdata *hostdata = shost_priv(instance); @@ -654,11 +654,10 @@ static int __exit sun3_scsi_remove(struct platform_device *pdev) if (udc_regs) dvma_free(udc_regs); iounmap(ioaddr); - return 0; } static struct platform_driver sun3_scsi_driver = { - .remove = __exit_p(sun3_scsi_remove), + .remove_new = __exit_p(sun3_scsi_remove), .driver = { .name = DRV_MODULE_NAME, }, From e84bd0bb30689023410f3cd5090c8ed11937096f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:58 +0100 Subject: [PATCH 13/14] scsi: sun3x_esp: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/5010d1a4f3d77eaa1114fa254c343c4f23313901.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/sun3x_esp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/sun3x_esp.c b/drivers/scsi/sun3x_esp.c index 30f67cbf4a7a..09219c362acc 100644 --- a/drivers/scsi/sun3x_esp.c +++ b/drivers/scsi/sun3x_esp.c @@ -243,7 +243,7 @@ static int esp_sun3x_probe(struct platform_device *dev) return err; } -static int esp_sun3x_remove(struct platform_device *dev) +static void esp_sun3x_remove(struct platform_device *dev) { struct esp *esp = dev_get_drvdata(&dev->dev); unsigned int irq = esp->host->irq; @@ -261,13 +261,11 @@ static int esp_sun3x_remove(struct platform_device *dev) esp->command_block_dma); scsi_host_put(esp->host); - - return 0; } static struct platform_driver esp_sun3x_driver = { .probe = esp_sun3x_probe, - .remove = esp_sun3x_remove, + .remove_new = esp_sun3x_remove, .driver = { .name = "sun3x_esp", }, From 6ff482eeebe57ee7becee66f7de4b864dcc4175d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 3 Dec 2023 17:05:59 +0100 Subject: [PATCH 14/14] scsi: sun_esp: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/1d385231c23c2a1e6e7dc1968eb111327386d1f6.1701619134.git.u.kleine-koenig@pengutronix.de Signed-off-by: Martin K. Petersen --- drivers/scsi/sun_esp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/sun_esp.c b/drivers/scsi/sun_esp.c index afa9d02a33ec..64a7c2c6c5ff 100644 --- a/drivers/scsi/sun_esp.c +++ b/drivers/scsi/sun_esp.c @@ -550,7 +550,7 @@ static int esp_sbus_probe(struct platform_device *op) return ret; } -static int esp_sbus_remove(struct platform_device *op) +static void esp_sbus_remove(struct platform_device *op) { struct esp *esp = dev_get_drvdata(&op->dev); struct platform_device *dma_of = esp->dma; @@ -581,8 +581,6 @@ static int esp_sbus_remove(struct platform_device *op) dev_set_drvdata(&op->dev, NULL); put_device(&dma_of->dev); - - return 0; } static const struct of_device_id esp_match[] = { @@ -605,7 +603,7 @@ static struct platform_driver esp_sbus_driver = { .of_match_table = esp_match, }, .probe = esp_sbus_probe, - .remove = esp_sbus_remove, + .remove_new = esp_sbus_remove, }; module_platform_driver(esp_sbus_driver);