It should be called up(&mq->sem) to release semaphore before returning
error codes as -EFAULT when list is empty.
Signed-off-by: Chaehyun Lim <chaehyun....@gmail.com>
---
drivers/staging/wilc1000/wilc_msgqueue.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/staging/wilc1000/wilc_msgqueue.c
b/drivers/staging/wilc1000/wilc_msgqueue.c
index f57e4ec..5fe85eb 100644
--- a/drivers/staging/wilc1000/wilc_msgqueue.c
+++ b/drivers/staging/wilc1000/wilc_msgqueue.c
@@ -126,6 +126,7 @@ int wilc_mq_recv(struct message_queue *mq,
if (list_empty(&mq->msg_list)) {
spin_unlock_irqrestore(&mq->lock, flags);
+ up(&mq->sem);
PRINT_ER("msg is null\n");
return -EFAULT;
}
--
2.7.0
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