[PATCH] lib: fwts_json: fix memory leaks on error return paths

[Colin King]

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

Memory leaks of str and tmp are occurring on error return paths, free
them before returning.

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 src/lib/src/fwts_json.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/lib/src/fwts_json.c b/src/lib/src/fwts_json.c
index 130e5ccb..c92dd512 100644
--- a/src/lib/src/fwts_json.c
+++ b/src/lib/src/fwts_json.c
@@ -924,9 +924,12 @@ static char *json_object_to_json_string_indent(json_object *obj, int indent)
 		if (!str)
 			return NULL;
 		tmp = str_escape((char *)obj->u.ptr);
-		if (!tmp)
+		if (!tmp) {
+			free(str);
 			return NULL;
+		}
 		str = str_append(str, tmp);
+		free(tmp);
 		if (!str)
 			return NULL;
 		str = str_append(str, "\"");
-- 
2.28.0