ACK: [PATCH] lib: fwts_json: fix memory leak on error return path

[Alex Hung]

On 2020-08-24 3:25 a.m., Colin King wrote:
> From: Colin Ian King <colin.king at canonical.com>
> 
> A memory leak of str is occurring on an error return path, free
> str before returning.
> 
> Signed-off-by: Colin Ian King <colin.king at canonical.com>
> ---
>  src/lib/src/fwts_json.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/src/lib/src/fwts_json.c b/src/lib/src/fwts_json.c
> index b92a241a..8f2c396d 100644
> --- a/src/lib/src/fwts_json.c
> +++ b/src/lib/src/fwts_json.c
> @@ -832,8 +832,10 @@ static char *json_object_to_json_string_indent(json_object *obj, int indent)
>  			for (i = 0; i < obj->length; i++) {
>  				char *obj_str = json_object_to_json_string_indent(obj_ptr[i], indent + 1);
>  
> -				if (!obj_str)
> +				if (!obj_str) {
> +					free(str);
>  					return NULL;
> +				}
>  				str = str_append(str, obj_str);
>  				if (!str)
>  					return NULL;
> 


Acked-by: Alex Hung <alex.hung at canonical.com>