1 files changed, 15 insertions, 2 deletions

diff --git a/drivers/block/xd.c b/drivers/block/xd.c
index b16a3a926cf2..d5a3cd750561 100644
--- a/drivers/block/xd.c
+++ b/drivers/block/xd.c
@@ -46,6 +46,7 @@
 #include <linux/init.h>
 #include <linux/wait.h>
 #include <linux/blkdev.h>
+#include <linux/smp_lock.h>
 #include <linux/blkpg.h>
 #include <linux/delay.h>
 #include <linux/io.h>
@@ -133,7 +134,7 @@ static int xd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 static const struct block_device_operations xd_fops = {
         .owner  = THIS_MODULE,
-        .locked_ioctl   = xd_ioctl,
+        .ioctl  = xd_ioctl,
         .getgeo = xd_getgeo,
 };
 static DECLARE_WAIT_QUEUE_HEAD(xd_wait_int);
@@ -347,7 +348,7 @@ static int xd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 }
 
 /* xd_ioctl: handle device ioctl's */
-static int xd_ioctl(struct block_device *bdev, fmode_t mode, u_int cmd, u_long arg)
+static int xd_locked_ioctl(struct block_device *bdev, fmode_t mode, u_int cmd, u_long arg)
 {
         switch (cmd) {
                 case HDIO_SET_DMA:
@@ -375,6 +376,18 @@ static int xd_ioctl(struct block_device *bdev, fmode_t mode, u_int cmd, u_long a
         }
 }
 
+static int xd_ioctl(struct block_device *bdev, fmode_t mode,
+                             unsigned int cmd, unsigned long param)
+{
+        int ret;
+
+        lock_kernel();
+        ret = xd_locked_ioctl(bdev, mode, cmd, param);
+        unlock_kernel();
+
+        return ret;
+}
+
 /* xd_readwrite: handle a read/write request */
 static int xd_readwrite (u_char operation,XD_INFO *p,char *buffer,u_int block,u_int count)
 {