1 files changed, 11 insertions, 9 deletions

diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 735a7fcdeff5..5f6fa4c67843 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -319,9 +319,8 @@ fs3270_write(struct file *filp, const char *data, size_t count, loff_t *off)
 /*
  * process ioctl commands for the tube driver
  */
-static int
-fs3270_ioctl(struct inode *inode, struct file *filp,
-             unsigned int cmd, unsigned long arg)
+static long
+fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
         struct fs3270 *fp;
         struct raw3270_iocb iocb;
@@ -331,6 +330,7 @@ fs3270_ioctl(struct inode *inode, struct file *filp,
         if (!fp)
                 return -ENODEV;
         rc = 0;
+        lock_kernel();
         switch (cmd) {
         case TUBICMD:
                 fp->read_command = arg;
@@ -356,6 +356,7 @@ fs3270_ioctl(struct inode *inode, struct file *filp,
                         rc = -EFAULT;
                 break;
         }
+        unlock_kernel();
         return rc;
 }
 
@@ -491,12 +492,13 @@ fs3270_close(struct inode *inode, struct file *filp)
 }
 
 static struct file_operations fs3270_fops = {
-        .owner   = THIS_MODULE,         /* owner */
-        .read    = fs3270_read,         /* read */
-        .write   = fs3270_write,        /* write */
-        .ioctl   = fs3270_ioctl,        /* ioctl */
-        .open    = fs3270_open,         /* open */
-        .release = fs3270_close,        /* release */
+        .owner           = THIS_MODULE,         /* owner */
+        .read            = fs3270_read,         /* read */
+        .write           = fs3270_write,        /* write */
+        .unlocked_ioctl  = fs3270_ioctl,        /* ioctl */
+        .compat_ioctl    = fs3270_ioctl,        /* ioctl */
+        .open           = fs3270_open,          /* open */
+        .release        = fs3270_close,         /* release */
 };
 
 /*