isdn: cdev lock_kernel() pushdown

Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index 0f3c66d..5158c60 100644 (file)
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -1732,7 +1732,7 @@ isdn_open(struct inode *ino, struct file *filep)
        int chidx;
        int retval = -ENODEV;
 
-
+       lock_kernel();
        if (minor == ISDN_MINOR_STATUS) {
                infostruct *p;
 
@@ -1783,6 +1783,7 @@ isdn_open(struct inode *ino, struct file *filep)
 #endif
  out:
        nonseekable_open(ino, filep);
+       unlock_kernel();
        return retval;
 }