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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-09-20 14:58:02 +0200
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2023-09-24 04:16:44 +0200
commitc55fb9780590b8612ef4338441687e6d2aff8c36 (patch)
treefd535e40c202e9cf24750375bf303ec622ee3d44 /drivers/input/misc
parentInput: soc_button_array - convert to platform remove callback returning void (diff)
downloadlinux-c55fb9780590b8612ef4338441687e6d2aff8c36.tar.xz
linux-c55fb9780590b8612ef4338441687e6d2aff8c36.zip
Input: sparcspkr - 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/20230920125829.1478827-26-u.kleine-koenig@pengutronix.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/misc')
-rw-r--r--drivers/input/misc/sparcspkr.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
index e5dd84725c6e..20020cbc0752 100644
--- a/drivers/input/misc/sparcspkr.c
+++ b/drivers/input/misc/sparcspkr.c
@@ -231,7 +231,7 @@ out_err:
return err;
}
-static int bbc_remove(struct platform_device *op)
+static void bbc_remove(struct platform_device *op)
{
struct sparcspkr_state *state = platform_get_drvdata(op);
struct input_dev *input_dev = state->input_dev;
@@ -245,8 +245,6 @@ static int bbc_remove(struct platform_device *op)
of_iounmap(&op->resource[0], info->regs, 6);
kfree(state);
-
- return 0;
}
static const struct of_device_id bbc_beep_match[] = {
@@ -264,7 +262,7 @@ static struct platform_driver bbc_beep_driver = {
.of_match_table = bbc_beep_match,
},
.probe = bbc_beep_probe,
- .remove = bbc_remove,
+ .remove_new = bbc_remove,
.shutdown = sparcspkr_shutdown,
};
@@ -310,7 +308,7 @@ out_err:
return err;
}
-static int grover_remove(struct platform_device *op)
+static void grover_remove(struct platform_device *op)
{
struct sparcspkr_state *state = platform_get_drvdata(op);
struct grover_beep_info *info = &state->u.grover;
@@ -325,8 +323,6 @@ static int grover_remove(struct platform_device *op)
of_iounmap(&op->resource[2], info->freq_regs, 2);
kfree(state);
-
- return 0;
}
static const struct of_device_id grover_beep_match[] = {
@@ -344,7 +340,7 @@ static struct platform_driver grover_beep_driver = {
.of_match_table = grover_beep_match,
},
.probe = grover_beep_probe,
- .remove = grover_remove,
+ .remove_new = grover_remove,
.shutdown = sparcspkr_shutdown,
};