ASoC: Check return value of struct_strtoul() in pmdown_time_set()

strict_strtoul() has just 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/soc-core.c b/sound/soc/soc-core.c
index 70d9a7394b2b..805343fe903b 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -165,8 +165,11 @@ static ssize_t pmdown_time_set(struct device *dev,
 {
         struct snd_soc_pcm_runtime *rtd =
                         container_of(dev, struct snd_soc_pcm_runtime, dev);
+        int ret;
 
-        strict_strtol(buf, 10, &rtd->pmdown_time);
+        ret = strict_strtol(buf, 10, &rtd->pmdown_time);
+        if (ret)
+                return ret;
 
         return count;
 }