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slimbus: qcom-ngd-ctrl: fix OF node refcount

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Platform devices created with platform_device_alloc() call
platform_device_release() when the last reference to the device's
kobject is dropped. This function calls of_node_put() unconditionally.
This works fine for devices created with platform_device_register_full()
but users of the split approach (platform_device_alloc() +
platform_device_add()) must bump the reference of the of_node they
assign manually. Add the missing call to of_node_get().

Cc: stable@vger.kernel.org
Fixes: 917809e228 ("slimbus: ngd: Add qcom SLIMBus NGD driver")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Srinivas Kandagatla <srini@kernel.org>
Link: https://patch.msgid.link/20260530204421.116824-2-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bartosz Golaszewski 2026-05-30 21:44:14 +01:00 committed by Greg Kroah-Hartman
parent 5b6b6fc491
commit 120134fe75
1 changed files with 1 additions and 1 deletions
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2
drivers/slimbus/qcom-ngd-ctrl.c
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@ -1542,7 +1542,7 @@ static int of_qcom_slim_ngd_register(struct device *parent,
kfree(ngd);
return ret;
}
ngd->pdev->dev.of_node = node;
ngd->pdev->dev.of_node = of_node_get(node);
ctrl->ngd = ngd;
ret = platform_device_add(ngd->pdev);