[PATCH] net: rfkill: Do not ignore errors from regulator_enable()
STALE4795d
From: Luis Henriques <hidden>
Date: 2013-08-14 22:10:11
Also in:
lkml, netdev
Subsystem:
rfkill, the rest · Maintainers:
Johannes Berg, Linus Torvalds
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 <redacted> --- 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 = {
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1.8.3.2