diff --git a/[refs] b/[refs]
index 6b5d922ec9b0..230caa18422c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1e86240f3fd33f8052141778ad3dffe2c96184d7
+refs/heads/master: 8e185d83398b2708f50207bc12d0e0a70bd70767
diff --git a/trunk/drivers/block/pktcdvd.c b/trunk/drivers/block/pktcdvd.c
index bde2c64b6346..451b996bba91 100644
--- a/trunk/drivers/block/pktcdvd.c
+++ b/trunk/drivers/block/pktcdvd.c
@@ -2577,19 +2577,19 @@ static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cm
 	case PKT_CTRL_CMD_SETUP:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		mutex_lock(&ctl_mutex);
+		mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
 		ret = pkt_setup_dev(&ctrl_cmd);
 		mutex_unlock(&ctl_mutex);
 		break;
 	case PKT_CTRL_CMD_TEARDOWN:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		mutex_lock(&ctl_mutex);
+		mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
 		ret = pkt_remove_dev(&ctrl_cmd);
 		mutex_unlock(&ctl_mutex);
 		break;
 	case PKT_CTRL_CMD_STATUS:
-		mutex_lock(&ctl_mutex);
+		mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
 		pkt_get_status(&ctrl_cmd);
 		mutex_unlock(&ctl_mutex);
 		break;