| Message ID | 20231102220246.3336154-10-u.kleine-koenig@pengutronix.de |
|---|---|
| State | Accepted |
| Headers | show |
| Series | mtd: Convert to platform remove callback returning (part II) | expand |
On Thu, 2023-11-02 at 22:02:51 UTC, =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= wrote: > 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> Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks. Miquel
diff --git a/drivers/mtd/nand/raw/txx9ndfmc.c b/drivers/mtd/nand/raw/txx9ndfmc.c index fdcdfbea0cbd..37f79c019a72 100644 --- a/drivers/mtd/nand/raw/txx9ndfmc.c +++ b/drivers/mtd/nand/raw/txx9ndfmc.c @@ -369,7 +369,7 @@ static int txx9ndfmc_probe(struct platform_device *dev) return 0; } -static int txx9ndfmc_remove(struct platform_device *dev) +static void txx9ndfmc_remove(struct platform_device *dev) { struct txx9ndfmc_drvdata *drvdata = platform_get_drvdata(dev); int ret, i; @@ -390,7 +390,6 @@ static int txx9ndfmc_remove(struct platform_device *dev) kfree(txx9_priv->mtdname); kfree(txx9_priv); } - return 0; } #ifdef CONFIG_PM @@ -406,7 +405,7 @@ static int txx9ndfmc_resume(struct platform_device *dev) static struct platform_driver txx9ndfmc_driver = { .probe = txx9ndfmc_probe, - .remove = txx9ndfmc_remove, + .remove_new = txx9ndfmc_remove, .resume = txx9ndfmc_resume, .driver = { .name = "txx9ndfmc",
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> --- drivers/mtd/nand/raw/txx9ndfmc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)