backlight: Avoid passing an invalid fd into close()
diff --git a/src/libbacklight.c b/src/libbacklight.c
index add89b2..98a20be 100644
--- a/src/libbacklight.c
+++ b/src/libbacklight.c
@@ -68,7 +68,8 @@
value = strtol(buffer, NULL, 10);
ret = value;
out:
- close(fd);
+ if (fd >= 0)
+ close(fd);
free(path);
return ret;
}
@@ -124,10 +125,10 @@
ret = backlight_get_brightness(backlight);
backlight->brightness = ret;
out:
- if (buffer)
- free(buffer);
+ free(buffer);
free(path);
- close(fd);
+ if (fd >= 0)
+ close(fd);
return ret;
}