1 files changed, 17 insertions, 3 deletions

diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 4bf7edca9e69..0b6e3228610a 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -91,12 +91,15 @@ static struct proc_dir_entry *mega_proc_dir_entry;
 /* For controller re-ordering */
 static struct mega_hbas mega_hbas[MAX_CONTROLLERS];
 
+static long
+megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
+
 /*
  * The File Operations structure for the serial/ioctl interface of the driver
  */
 static const struct file_operations megadev_fops = {
         .owner          = THIS_MODULE,
-        .ioctl          = megadev_ioctl,
+        .unlocked_ioctl = megadev_unlocked_ioctl,
         .open           = megadev_open,
 };
 
@@ -3302,8 +3305,7 @@ megadev_open (struct inode *inode, struct file *filep)
  * controller.
  */
 static int
-megadev_ioctl(struct inode *inode, struct file *filep, unsigned int cmd,
-                unsigned long arg)
+megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 {
         adapter_t       *adapter;
         nitioctl_t      uioc;
@@ -3694,6 +3696,18 @@ freemem_and_return:
         return 0;
 }
 
+static long
+megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
+{
+        int ret;
+
+        lock_kernel();
+        ret = megadev_ioctl(filep, cmd, arg);
+        unlock_kernel();
+
+        return ret;
+}
+
 /**
  * mega_m_to_n()
  * @arg - user address