isdn: Push down BKL into ioctl functions

Push down bkl into isdn ioctl functions

[fweisbec: dropped drivers/isdn/divert/divert_procfs.c
as it has been pushed down in procfs branch already]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

1 files changed, 15 insertions, 3 deletions

diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index 70044ee4b228..a44cdb492ea9 100644
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -1272,9 +1272,9 @@ isdn_poll(struct file *file, poll_table * wait)
 
 
 static int
-isdn_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg)
+isdn_ioctl(struct file *file, uint cmd, ulong arg)
 {
-        uint minor = iminor(inode);
+        uint minor = iminor(file->f_path.dentry->d_inode);
         isdn_ctrl c;
         int drvidx;
         int chidx;
@@ -1722,6 +1722,18 @@ isdn_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg)
 #undef cfg
 }
 
+static long
+isdn_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+        int ret;
+
+        lock_kernel();
+        ret = isdn_ioctl(file, cmd, arg);
+        unlock_kernel();
+
+        return ret;
+}
+
 /*
  * Open the device code.
  */
@@ -1838,7 +1850,7 @@ static const struct file_operations isdn_fops =
         .read           = isdn_read,
         .write          = isdn_write,
         .poll           = isdn_poll,
-        .ioctl          = isdn_ioctl,
+        .unlocked_ioctl = isdn_unlocked_ioctl,
         .open           = isdn_open,
         .release        = isdn_close,
 };