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authorArnd Bergmann <arnd@arndb.de>2008-05-20 19:15:57 +0200
committerJonathan Corbet <corbet@lwn.net>2008-06-20 14:05:57 -0600
commit4a7e79a7deab9718d51dc8d3ee938bd0eb789b7b (patch)
tree88cd99496946bb7871e30db6640c5ab6048c95b9
parent742a2fe31bf311d065a2bbacc2b363103b351300 (diff)
hdpu_cpustate: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-rw-r--r--drivers/misc/hdpuftrs/hdpu_cpustate.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/misc/hdpuftrs/hdpu_cpustate.c b/drivers/misc/hdpuftrs/hdpu_cpustate.c
index ff51ab67231..176fe4e09d3 100644
--- a/drivers/misc/hdpuftrs/hdpu_cpustate.c
+++ b/drivers/misc/hdpuftrs/hdpu_cpustate.c
@@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
#include <linux/miscdevice.h>
#include <linux/proc_fs.h>
#include <linux/hdpu_features.h>
@@ -151,7 +152,13 @@ static ssize_t cpustate_write(struct file *file, const char *buf,
static int cpustate_open(struct inode *inode, struct file *file)
{
- return cpustate_get_ref((file->f_flags & O_EXCL));
+ int ret;
+
+ lock_kernel();
+ ret = cpustate_get_ref((file->f_flags & O_EXCL));
+ unlock_kernel();
+
+ return ret;
}
static int cpustate_release(struct inode *inode, struct file *file)