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-rw-r--r--drivers/hid/hidraw.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 0c6639ea03dd..b079a9c59958 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -47,10 +47,9 @@ static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count,
47 char *report; 47 char *report;
48 DECLARE_WAITQUEUE(wait, current); 48 DECLARE_WAITQUEUE(wait, current);
49 49
50 while (ret == 0) { 50 mutex_lock(&list->read_mutex);
51
52 mutex_lock(&list->read_mutex);
53 51
52 while (ret == 0) {
54 if (list->head == list->tail) { 53 if (list->head == list->tail) {
55 add_wait_queue(&list->hidraw->wait, &wait); 54 add_wait_queue(&list->hidraw->wait, &wait);
56 set_current_state(TASK_INTERRUPTIBLE); 55 set_current_state(TASK_INTERRUPTIBLE);