From: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
commit dee08ab83d0378d922b67e7cf10bbec3e4ea343b upstream.
Function regulator_enable() may return an error that has to be checked.
This patch changes function rfkill_regulator_set_block() so that it checks
for the return code. Also, rfkill_data->reg_enabled is set to 'true' only
if there is no error.
This fixes the following compilation warning:
net/rfkill/rfkill-regulator.c:43:20: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result]
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
net/rfkill/rfkill-regulator.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/net/rfkill/rfkill-regulator.c b/net/rfkill/rfkill-regulator.c
index d11ac79..cf5b145 100644
--- a/net/rfkill/rfkill-regulator.c
+++ b/net/rfkill/rfkill-regulator.c
@@ -30,6 +30,7 @@ struct rfkill_regulator_data {
static int rfkill_regulator_set_block(void *data, bool blocked)
{
struct rfkill_regulator_data *rfkill_data = data;
+ int ret = 0;
pr_debug("%s: blocked: %d\n", __func__, blocked);
@@ -40,15 +41,16 @@ static int rfkill_regulator_set_block(void *data, bool blocked)
}
} else {
if (!rfkill_data->reg_enabled) {
- regulator_enable(rfkill_data->vcc);
- rfkill_data->reg_enabled = true;
+ ret = regulator_enable(rfkill_data->vcc);
+ if (!ret)
+ rfkill_data->reg_enabled = true;
}
}
pr_debug("%s: regulator_is_enabled after set_block: %d\n", __func__,
regulator_is_enabled(rfkill_data->vcc));
- return 0;
+ return ret;
}
static struct rfkill_ops rfkill_regulator_ops = {
--
2.8.0.rc2.1.gbe9624a
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