open returns -1 on failure

2025-04-24 04:53:23 +02:00 · 2014-07-06 16:48:47 +10:00 · 2014-07-06 16:48:47 +10:00 · a749e21e73
commit a749e21e73
parent 9689a3b4e2
1 changed files with 1 additions and 1 deletions
--- a/main.c
+++ b/main.c
@ -38,7 +38,7 @@ int process() {
    fbfd = open("/dev/fb1", O_RDWR);
-    if (!fbfd) {
+    if (fbfd == -1) {
        syslog(LOG_ERR, "Unable to open secondary display");
        return -1;
    }