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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2023-05-18 01:01:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-28 12:36:14 +0100 |
| commit | e8fa2dd9e2bc12f8386f3d5b897d8ea025ee8b7b (patch) | |
| tree | e9b3625bd766892b568a162d37fb0dcbcb7a5cac | |
| parent | ee4d21aa4a227466c5635831e950c7276db797db (diff) | |
| download | lwn-e8fa2dd9e2bc12f8386f3d5b897d8ea025ee8b7b.tar.gz lwn-e8fa2dd9e2bc12f8386f3d5b897d8ea025ee8b7b.zip | |
usb: c67x00-drv: 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() is
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>
Link: https://lore.kernel.org/r/20230517230239.187727-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/c67x00/c67x00-drv.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c index 6db5cb1b2dbb..bb9d5d7ffefc 100644 --- a/drivers/usb/c67x00/c67x00-drv.c +++ b/drivers/usb/c67x00/c67x00-drv.c @@ -177,7 +177,7 @@ static int c67x00_drv_probe(struct platform_device *pdev) return ret; } -static int c67x00_drv_remove(struct platform_device *pdev) +static void c67x00_drv_remove(struct platform_device *pdev) { struct c67x00_device *c67x00 = platform_get_drvdata(pdev); struct resource *res; @@ -197,13 +197,11 @@ static int c67x00_drv_remove(struct platform_device *pdev) release_mem_region(res->start, resource_size(res)); kfree(c67x00); - - return 0; } static struct platform_driver c67x00_driver = { .probe = c67x00_drv_probe, - .remove = c67x00_drv_remove, + .remove_new = c67x00_drv_remove, .driver = { .name = "c67x00", }, |