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authorIngo Molnar <mingo@elte.hu>2008-07-18 19:53:16 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-18 19:53:16 +0200
commit9b610fda0df5d0f0b0c64242e37441ad1b384aac (patch)
tree0ea14b15f2e6546f37fe18d8ac3dc83077ec0e55 /drivers/sbus/char/envctrl.c
parentnohz: prevent tick stop outside of the idle loop (diff)
parentMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 (diff)
downloadlinux-dev-9b610fda0df5d0f0b0c64242e37441ad1b384aac.tar.xz
linux-dev-9b610fda0df5d0f0b0c64242e37441ad1b384aac.zip
Merge branch 'linus' into timers/nohz
Diffstat (limited to 'drivers/sbus/char/envctrl.c')
-rw-r--r--drivers/sbus/char/envctrl.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index dadabef116b6..a408402426f8 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -27,6 +27,7 @@
#include <linux/miscdevice.h>
#include <linux/kmod.h>
#include <linux/reboot.h>
+#include <linux/smp_lock.h>
#include <asm/ebus.h>
#include <asm/uaccess.h>
@@ -694,6 +695,7 @@ envctrl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
static int
envctrl_open(struct inode *inode, struct file *file)
{
+ cycle_kernel_lock();
file->private_data = NULL;
return 0;
}