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@xxxxxxxxxxxxxx>
---
drivers/input/misc/sparcspkr.c | 12 ++++--------
1 file 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 @@ static int bbc_beep_probe(struct platform_device *op)
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 @@ static int grover_beep_probe(struct platform_device *op)
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,
};
--
2.40.1
