Memory leak

du4/a_train.c

@@ -68,10 +68,10 @@ struct car* clear_train(struct car* first, const char* target) {
         prev = temp;
         temp = temp->next;
         if(strcmp(temp->value, target) == 0){
-        
-        prev->next = temp->next;
+         struct car* next = temp->next;
+        prev->next = next;
         free(temp);
-        temp = prev->next;
+        temp = next;
 
     }