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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2024-04-29 15:01:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-05-04 18:57:22 +0200
commit1592e84c7d7b3015df29f67db014560f0a9b5c66 (patch)
tree85803d2442ebdf7b476cb804f291ac979f8ed08c
parentstm class: sys-t: Improve ftrace source handling (diff)
downloadlinux-1592e84c7d7b3015df29f67db014560f0a9b5c66.tar.xz
linux-1592e84c7d7b3015df29f67db014560f0a9b5c66.zip
intel_th: Convert to platform remove callback returning void
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(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240429130119.1518073-6-alexander.shishkin@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/hwtracing/intel_th/acpi.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/hwtracing/intel_th/acpi.c b/drivers/hwtracing/intel_th/acpi.c
index 87f9024e4bbb..503620e9fd10 100644
--- a/drivers/hwtracing/intel_th/acpi.c
+++ b/drivers/hwtracing/intel_th/acpi.c
@@ -60,18 +60,16 @@ static int intel_th_acpi_probe(struct platform_device *pdev)
return 0;
}
-static int intel_th_acpi_remove(struct platform_device *pdev)
+static void intel_th_acpi_remove(struct platform_device *pdev)
{
struct intel_th *th = platform_get_drvdata(pdev);
intel_th_free(th);
-
- return 0;
}
static struct platform_driver intel_th_acpi_driver = {
.probe = intel_th_acpi_probe,
- .remove = intel_th_acpi_remove,
+ .remove_new = intel_th_acpi_remove,
.driver = {
.name = DRIVER_NAME,
.acpi_match_table = intel_th_acpi_ids,