[PATCH 3/4] lib: fwts_devicetree: fix memory leak on data

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

There is a resource leak on the error exit path on variable data;
so free it.

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 src/lib/src/fwts_devicetree.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lib/src/fwts_devicetree.c b/src/lib/src/fwts_devicetree.c
index baa4e6b..5978ab9 100644
--- a/src/lib/src/fwts_devicetree.c
+++ b/src/lib/src/fwts_devicetree.c
@@ -27,7 +27,7 @@ static const char *devicetree_fs_path = "/sys/firmware/devicetree/base";
 
 int fwts_devicetree_read(fwts_framework *fwts)
 {
-	char *command, *data;
+	char *command, *data = NULL;
 	int fd, rc, status;
 	ssize_t len;
 	pid_t pid;
@@ -56,6 +56,7 @@ int fwts_devicetree_read(fwts_framework *fwts)
 
 	if (!WIFEXITED(status) || WEXITSTATUS(status) != 0 || len == 0) {
 		fprintf(stderr, "Cannot read devicetree data: dtc failed\n");
+		free(data);
 		return FWTS_ERROR;
 	}
 
-- 
2.8.1