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iommu/fsl: use platform_device_set_of_node()

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Ahead of reworking the reference counting logic for platform devices,
encapsulate the assignment of the OF node for dynamically allocated
platform devices with the provided helper.

Acked-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260706-pdev-fwnode-ref-v3-9-1ff028e33779@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bartosz Golaszewski 2026-07-06 14:44:21 +02:00 committed by Greg Kroah-Hartman
parent 34934e7cd1
commit 6fc33ee89d
1 changed files with 6 additions and 10 deletions
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16
drivers/iommu/fsl_pamu.c
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@ -8,6 +8,7 @@
#include "fsl_pamu.h"
#include <linux/cleanup.h>
#include <linux/fsl/guts.h>
#include <linux/interrupt.h>
#include <linux/genalloc.h>
@ -933,7 +934,6 @@ static struct platform_driver fsl_of_pamu_driver = {
static __init int fsl_pamu_init(void)
{
struct platform_device *pdev = NULL;
struct device_node *np;
int ret;
/*
@ -955,7 +955,8 @@ static __init int fsl_pamu_init(void)
* PAMU node would require significant changes to a lot of code.
*/
np = of_find_compatible_node(NULL, NULL, "fsl,pamu");
struct device_node *np __free(device_node) =
of_find_compatible_node(NULL, NULL, "fsl,pamu");
if (!np) {
pr_err("could not find a PAMU node\n");
return -ENODEV;
@ -964,7 +965,7 @@ static __init int fsl_pamu_init(void)
ret = platform_driver_register(&fsl_of_pamu_driver);
if (ret) {
pr_err("could not register driver (err=%i)\n", ret);
goto error_driver_register;
return ret;
}
pdev = platform_device_alloc("fsl-of-pamu", 0);
@ -973,7 +974,8 @@ static __init int fsl_pamu_init(void)
ret = -ENOMEM;
goto error_device_alloc;
}
pdev->dev.of_node = of_node_get(np);
platform_device_set_of_node(pdev, np);
ret = pamu_domain_init();
if (ret)
@ -988,17 +990,11 @@ static __init int fsl_pamu_init(void)
return 0;
error_device_add:
of_node_put(pdev->dev.of_node);
pdev->dev.of_node = NULL;
platform_device_put(pdev);
error_device_alloc:
platform_driver_unregister(&fsl_of_pamu_driver);
error_driver_register:
of_node_put(np);
return ret;
}
arch_initcall(fsl_pamu_init);