1 files changed, 16 insertions, 1 deletions

diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
index 883f0c979c9f..137337a795a9 100644
--- a/drivers/ide/ide-gd.c
+++ b/drivers/ide/ide-gd.c
@@ -1,3 +1,4 @@
+#include <linux/smp_lock.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/string.h>
@@ -237,6 +238,18 @@ out_put_idkp:
         return ret;
 }
 
+static int ide_gd_unlocked_open(struct block_device *bdev, fmode_t mode)
+{
+        int ret;
+
+        lock_kernel();
+        ret = ide_gd_open(bdev, mode);
+        unlock_kernel();
+
+        return ret;
+}
+
+
 static int ide_gd_release(struct gendisk *disk, fmode_t mode)
 {
         struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj);
@@ -244,6 +257,7 @@ static int ide_gd_release(struct gendisk *disk, fmode_t mode)
 
         ide_debug_log(IDE_DBG_FUNC, "enter");
 
+        lock_kernel();
         if (idkp->openers == 1)
                 drive->disk_ops->flush(drive);
 
@@ -255,6 +269,7 @@ static int ide_gd_release(struct gendisk *disk, fmode_t mode)
         idkp->openers--;
 
         ide_disk_put(idkp);
+        unlock_kernel();
 
         return 0;
 }
@@ -321,7 +336,7 @@ static int ide_gd_ioctl(struct block_device *bdev, fmode_t mode,
 
 static const struct block_device_operations ide_gd_ops = {
         .owner                  = THIS_MODULE,
-        .open                   = ide_gd_open,
+        .open                   = ide_gd_unlocked_open,
         .release                = ide_gd_release,
         .ioctl                  = ide_gd_ioctl,
         .getgeo                 = ide_gd_getgeo,