net-tun: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 0ce07a3..ce5af2a 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -48,6 +48,7 @@
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/poll.h>
#include <linux/fcntl.h>
#include <linux/init.h>
@@ -797,6 +798,7 @@
static int tun_chr_open(struct inode *inode, struct file * file)
{
+ cycle_kernel_lock();
DBG1(KERN_INFO "tunX: tun_chr_open\n");
file->private_data = NULL;
return 0;