fixed bug for ubuntu

Author: 马犇

cfc.c

@@ -348,7 +348,8 @@ void *cfc_thread_worker(void *arg)
 			cfc_item_t *item;
 			for (;;) {
 				result = read(notify, &tmp, 1);
-				if (result == -1 || tmp != '\0') {
+				if ((result == -1 || tmp != '\0')
+					&& result != 0) {
 					break;
 				}