diff --git a/drivers/scsi/scsi_tgt_if.c b/drivers/scsi/scsi_tgt_if.c
index d2557dbc2dc..0e9533f7aab 100644
--- a/drivers/scsi/scsi_tgt_if.c
+++ b/drivers/scsi/scsi_tgt_if.c
@@ -21,6 +21,7 @@
  */
 #include <linux/miscdevice.h>
 #include <linux/file.h>
+#include <linux/smp_lock.h>
 #include <net/tcp.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -321,6 +322,7 @@ static int tgt_open(struct inode *inode, struct file *file)
 {
 	tx_ring.tr_idx = rx_ring.tr_idx = 0;
 
+	cycle_kernel_lock();
 	return 0;
 }