1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index b219118f8bd6..8dbf1c3afb7b 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -4932,7 +4932,7 @@ static int os_scsi_tape_close(struct inode * inode, struct file * filp)
 
 
 /* The ioctl command */
-static int osst_ioctl(struct inode * inode,struct file * file,
+static long osst_ioctl(struct file * file,
          unsigned int cmd_in, unsigned long arg)
 {
         int                   i, cmd_nr, cmd_type, blk, retval = 0;
@@ -4943,8 +4943,11 @@ static int osst_ioctl(struct inode * inode,struct file * file,
         char                * name  = tape_name(STp);
         void        __user  * p     = (void __user *)arg;
 
-        if (mutex_lock_interruptible(&STp->lock))
+        lock_kernel();
+        if (mutex_lock_interruptible(&STp->lock)) {
+                unlock_kernel();
                 return -ERESTARTSYS;
+        }
 
 #if DEBUG
         if (debugging && !STp->in_use) {
@@ -5256,12 +5259,15 @@ static int osst_ioctl(struct inode * inode,struct file * file,
 
         mutex_unlock(&STp->lock);
 
-        return scsi_ioctl(STp->device, cmd_in, p);
+        retval = scsi_ioctl(STp->device, cmd_in, p);
+        unlock_kernel();
+        return retval;
 
 out:
         if (SRpnt) osst_release_request(SRpnt);
 
         mutex_unlock(&STp->lock);
+        unlock_kernel();
 
         return retval;
 }
@@ -5613,7 +5619,7 @@ static const struct file_operations osst_fops = {
         .owner =        THIS_MODULE,
         .read =         osst_read,
         .write =        osst_write,
-        .ioctl =        osst_ioctl,
+        .unlocked_ioctl = osst_ioctl,
 #ifdef CONFIG_COMPAT
         .compat_ioctl = osst_compat_ioctl,
 #endif