Re: [PATCH] debugfs: fix memory leak problem in read_list()

[Zhiqiang Liu <liuzhiqiang26@huawei.com>]

friendly ping ...

On 2021/2/20 16:41, Zhiqiang Liu wrote:
> 
> In read_list func, if strtoull() fails in while loop,
> we will return the error code directly. Then, memory of
> variable lst will be leaked without setting to *list.
> 
> Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
> Signed-off-by: linfeilong <linfeilong@huawei.com>
> ---
>  debugfs/util.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/debugfs/util.c b/debugfs/util.c
> index be6b550e..9e880548 100644
> --- a/debugfs/util.c
> +++ b/debugfs/util.c
> @@ -530,12 +530,16 @@ errcode_t read_list(char *str, blk64_t **list, size_t *len)
> 
>  		errno = 0;
>  		y = x = strtoull(tok, &e, 0);
> -		if (errno)
> -			return errno;
> +		if (errno) {
> +			retval = errno;
> +			break;
> +		}
>  		if (*e == '-') {
>  			y = strtoull(e + 1, NULL, 0);
> -			if (errno)
> -				return errno;
> +			if (errno) {
> +				retval = errno;
> +				break;
> +			}
>  		} else if (*e != 0) {
>  			retval = EINVAL;
>  			break;
>