[PATCH 8/8] backlight: Jump to cleanup code if synthesizing backlight string fails

[Rob Bradford]

From: Rob Bradford <rob at linux.intel.com>

This applies the same pattern as used in other error cases in this block - and
cleans up the file desciptors and allocated memory too.

Signed-off-by: Rob Bradford <rob at linux.intel.com>
---
 src/libbacklight.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/libbacklight.c b/src/libbacklight.c
index c432c6e..df811b4 100644
--- a/src/libbacklight.c
+++ b/src/libbacklight.c
@@ -111,8 +111,10 @@ long backlight_set_brightness(struct backlight *backlight, long brightness)
 		goto out;
 	}
 
-	if (asprintf(&buffer, "%ld", brightness) < 0)
-		return -ENOMEM;
+	if (asprintf(&buffer, "%ld", brightness) < 0) {
+		ret = -1;
+		goto out;
+	}
 
 	ret = write(fd, buffer, strlen(buffer));
 	if (ret < 0) {
-- 
1.7.11.2