Clean up the C programs a touch

1 files changed, 5 insertions, 4 deletions

diff --git a/bin/backlight.c b/bin/backlight.c
index e3d6f6a..f3f1b3f 100644
--- a/bin/backlight.c
+++ b/bin/backlight.c
@@ -113,12 +113,8 @@ setBacklight(const char *prefix, int percent)
 int
 main(int argc, char **argv)
 {
-	uid_t uid = getuid();
-	gid_t gid = getgid();
 	uid_t euid = geteuid();
 	char **a = argv+1;
-	pid_t pid;
-	int ret;
 
 	if (euid != 0)
 		die("Program must be run as root/setuid");
@@ -158,6 +154,8 @@ main(int argc, char **argv)
 		ret = maxBrightness(prefix, &max);
 		if (ret != 0) {
 			const char *msg = strerror(ret);
+			printf("Error getting max brightness for: %s : %s\n",
+					prefix, msg);
 			continue;
 		}
 
@@ -167,5 +165,8 @@ main(int argc, char **argv)
 		if (ret != 0) {
 			perror("setBacklight");
 		}
+
+		free(prefix);
+		prefix = NULL;
 	}
 }