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SubjectRe: [PATCH 4/5] btrfs: Use common error handling code in update_ref_path()
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On 8/21/17 8:41 AM, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Mon, 21 Aug 2017 13:34:29 +0200
>
> Add a jump target so that a bit of exception handling can be better reused
> in this function.
>
> This issue was detected by using the Coccinelle software.

Adding a jump label in the middle of a conditional for "common" error
handling makes the code more difficult to understand.

-Jeff

> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
> fs/btrfs/send.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
> index 59fb1ed6ca20..a96edc91a101 100644
> --- a/fs/btrfs/send.c
> +++ b/fs/btrfs/send.c
> @@ -3697,12 +3697,12 @@ static int update_ref_path(struct send_ctx *sctx, struct recorded_ref *ref)
> return -ENOMEM;
>
> ret = get_cur_path(sctx, ref->dir, ref->dir_gen, new_path);
> - if (ret < 0) {
> - fs_path_free(new_path);
> - return ret;
> - }
> + if (ret < 0)
> + goto free_path;
> +
> ret = fs_path_add(new_path, ref->name, ref->name_len);
> if (ret < 0) {
> +free_path:
> fs_path_free(new_path);
> return ret;
> }
>


--
Jeff Mahoney
SUSE Labs

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