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authorArnd Bergmann <arnd@arndb.de>2008-05-20 19:16:52 +0200
committerJonathan Corbet <corbet@lwn.net>2008-07-02 15:06:25 -0600
commitf138e4814a9c28bc44d967a8effdd977ac00fc6e (patch)
tree6d65cd348debc792b6a35d7716165de0045fdb0d /drivers/sbus
parent25368ca579905efe7f7dda43c252eb7b371de98c (diff)
uctrl: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/sbus')
-rw-r--r--drivers/sbus/char/uctrl.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index 383f32c1d347..513ba61ae966 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -9,6 +9,7 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/miscdevice.h>
@@ -211,8 +212,10 @@ uctrl_ioctl(struct inode *inode, struct file *file,
static int
uctrl_open(struct inode *inode, struct file *file)
{
+ lock_kernel();
uctrl_get_event_status();
uctrl_get_external_status();
+ unlock_kernel();
return 0;
}