From 0937e53f4a33bb9a55c4ab4cf6c31a3294cf483c Mon Sep 17 00:00:00 2001
From: Robin Krahl <guskraro@student.gu.se>
Date: Wed, 4 Oct 2017 14:48:45 +0200
Subject: fifoqueue: Release (or do not acquire) mutex in all cases in
 add_to_queue

---
 broccoli/src/fifoqueue.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/broccoli/src/fifoqueue.c b/broccoli/src/fifoqueue.c
index 9b972e7..87e0332 100644
--- a/broccoli/src/fifoqueue.c
+++ b/broccoli/src/fifoqueue.c
@@ -48,13 +48,13 @@ is_empty(Fifo_q * q)
     int
 add_to_queue(Fifo_q * q, Sensor_t * sensor)
 {
+    if (q == NULL)
+        return -1;
 
     pthread_mutex_lock(&lock);
     /* TODO delete first one if full */
-    if(q == NULL){
-        return -1;    
-    } 
-    else if(is_full(q)){
+    if(is_full(q)){
+        pthread_mutex_unlock(&lock);
         return -1;
     }
     Queue_t * new_elem = (Queue_t *) malloc(sizeof(Queue_t));
-- 
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