diff --git a/[refs] b/[refs]
index 48ab8fbf5332..298e424a8a57 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cf22f9a2b83e72082c43ef5c942d5daf9301da8e
+refs/heads/master: 8831a3f2c9ee7d952e6d7a018d11c0c9c5b56749
diff --git a/trunk/drivers/isdn/hysdn/hysdn_proclog.c b/trunk/drivers/isdn/hysdn/hysdn_proclog.c
index ba91333e3e41..88e4f0ee073c 100644
--- a/trunk/drivers/isdn/hysdn/hysdn_proclog.c
+++ b/trunk/drivers/isdn/hysdn/hysdn_proclog.c
@@ -156,17 +156,9 @@ static ssize_t
 hysdn_log_write(struct file *file, const char __user *buf, size_t count, loff_t *off)
 {
 	int rc;
-	unsigned char valbuf[128];
 	hysdn_card *card = file->private_data;
 
-	if (count > (sizeof(valbuf) - 1))
-		count = sizeof(valbuf) - 1;	/* limit length */
-	if (copy_from_user(valbuf, buf, count))
-		return (-EFAULT);	/* copy failed */
-
-	valbuf[count] = 0;	/* terminating 0 */
-
-	rc = kstrtoul(valbuf, 0, &card->debug_flags);
+	rc = kstrtoul_from_user(buf, count, 0, &card->debug_flags);
 	if (rc < 0)
 		return rc;
 	hysdn_addlog(card, "debug set to 0x%lx", card->debug_flags);