[PATCH] net: rfkill: Check the return value of regulator_enable()

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@freescale.com>

Fix the following build 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: Fabio Estevam <fabio.estevam@freescale.com>
---
 net/rfkill/rfkill-regulator.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/rfkill/rfkill-regulator.c b/net/rfkill/rfkill-regulator.c
index d11ac79..0aa922c 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;
 
 	pr_debug("%s: blocked: %d\n", __func__, blocked);
 
@@ -40,7 +41,9 @@ static int rfkill_regulator_set_block(void *data, bool blocked)
 		}
 	} else {
 		if (!rfkill_data->reg_enabled) {
-			regulator_enable(rfkill_data->vcc);
+			ret = regulator_enable(rfkill_data->vcc);
+			if (ret)
+				return ret;
 			rfkill_data->reg_enabled = true;
 		}
 	}
-- 
1.8.1.2