diff options
| -rw-r--r-- | plugins/power/gsd-backlight-helper.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/plugins/power/gsd-backlight-helper.c b/plugins/power/gsd-backlight-helper.c index c370c791..f0fbbb59 100644 --- a/plugins/power/gsd-backlight-helper.c +++ b/plugins/power/gsd-backlight-helper.c @@ -85,13 +85,6 @@ main (int argc, char *argv[]) goto done; } - device = realpath (argv[1], NULL); - if (device == NULL) { - fprintf (stderr, "Error: Could not canonicalize given path (%d: %s)\n", errno, strerror (errno)); - result = GSD_BACKLIGHT_HELPER_EXIT_CODE_FAILED; - goto done; - } - dp = opendir ("/sys/class/backlight"); if (dp == NULL) { fprintf (stderr, "Error: Could not open /sys/class/backlight (%d: %s)\n", errno, strerror (errno)); @@ -99,6 +92,9 @@ main (int argc, char *argv[]) goto done; } + /* May be NULL if the path cannot be resolved */ + device = realpath (argv[1], NULL); + while ((ep = readdir (dp))) { char *path; @@ -108,7 +104,7 @@ main (int argc, char *argv[]) /* Leave room for "/brightness" */ snprintf (tmp, sizeof(tmp) - 11, "/sys/class/backlight/%s", ep->d_name); path = realpath (tmp, NULL); - if (strcmp (path, device) == 0) { + if (path && device && strcmp (path, device) == 0) { free (path); strcat (tmp, "/brightness"); |