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path: root/drivers/hid/hidraw.c
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Diffstat (limited to 'drivers/hid/hidraw.c')
-rw-r--r--drivers/hid/hidraw.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 0c6639ea03dd..cdd136942bca 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -30,6 +30,7 @@
#include <linux/major.h>
#include <linux/hid.h>
#include <linux/mutex.h>
+#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/hidraw.h>
@@ -47,10 +48,9 @@ static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count,
char *report;
DECLARE_WAITQUEUE(wait, current);
- while (ret == 0) {
-
- mutex_lock(&list->read_mutex);
+ mutex_lock(&list->read_mutex);
+ while (ret == 0) {
if (list->head == list->tail) {
add_wait_queue(&list->hidraw->wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);