ASoC: Check return value of strict_strtoul() in WM8962

strict_strtoul() has been made __must_check so do so.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 4 insertions, 1 deletions

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 894d0cd3aa9..e8092745a20 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3500,8 +3500,11 @@ static ssize_t wm8962_beep_set(struct device *dev,
 {
         struct wm8962_priv *wm8962 = dev_get_drvdata(dev);
         long int time;
+        int ret;
 
-        strict_strtol(buf, 10, &time);
+        ret = strict_strtol(buf, 10, &time);
+        if (ret != 0)
+                return ret;
 
         input_event(wm8962->beep, EV_SND, SND_TONE, time);