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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-12-08 17:08:09 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-12-15 17:07:28 +0100
commit560bb502ea1639fc3ab839c00bb28c05591fdb1b (patch)
treef684227a8b6ca6d1a32d371f87198f84657e7db1 /drivers/pcmcia
parent292006710d87cb54927e551bc306401fb398a3ed (diff)
downloadlwn-560bb502ea1639fc3ab839c00bb28c05591fdb1b.tar.gz
lwn-560bb502ea1639fc3ab839c00bb28c05591fdb1b.zip
pcmcia: omap_cf: 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> Link: https://lore.kernel.org/r/9d96646b75b10f7562d4d18010e885b7fc55e0ab.1702051073.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pcmcia')
-rw-r--r--drivers/pcmcia/omap_cf.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
index e613818dc0bc..80137c7afe0d 100644
--- a/drivers/pcmcia/omap_cf.c
+++ b/drivers/pcmcia/omap_cf.c
@@ -290,7 +290,7 @@ fail0:
return status;
}
-static int __exit omap_cf_remove(struct platform_device *pdev)
+static void __exit omap_cf_remove(struct platform_device *pdev)
{
struct omap_cf_socket *cf = platform_get_drvdata(pdev);
@@ -300,14 +300,13 @@ static int __exit omap_cf_remove(struct platform_device *pdev)
release_mem_region(cf->phys_cf, SZ_8K);
free_irq(cf->irq, cf);
kfree(cf);
- return 0;
}
static struct platform_driver omap_cf_driver = {
.driver = {
.name = driver_name,
},
- .remove = __exit_p(omap_cf_remove),
+ .remove_new = __exit_p(omap_cf_remove),
};
static int __init omap_cf_init(void)