diff --git a/[refs] b/[refs]
index a4065b8d5e9d..892e32b95929 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d7de993503aa23f34d58b7945cf00ad9a9486bda
+refs/heads/master: cdf5e55124e4804fc0027df7e89567a3f5eed8bf
diff --git a/trunk/drivers/staging/line6/pcm.c b/trunk/drivers/staging/line6/pcm.c
index 5e319e3ce685..7fe44a6fd0ed 100644
--- a/trunk/drivers/staging/line6/pcm.c
+++ b/trunk/drivers/staging/line6/pcm.c
@@ -48,7 +48,13 @@ static ssize_t pcm_set_impulse_volume(struct device *dev,
 				      const char *buf, size_t count)
 {
 	struct snd_line6_pcm *line6pcm = dev2pcm(dev);
-	int value = simple_strtoul(buf, NULL, 10);
+	int value;
+	int rv;
+
+	rv = kstrtoint(buf, 10, &value);
+	if (rv < 0)
+		return rv;
+
 	line6pcm->impulse_volume = value;
 
 	if (value > 0)