Re: [PATCH] upload-pack: remove superfluous sigchain_pop() call

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On Tue, Aug 11, 2020 at 07:15:03PM +0200, René Scharfe wrote:
> 2997178ee6 (upload-pack: split check_unreachable() in two, prep for
> get_reachable_list(), 2016-06-12) moved most code of has_unreachable()
> into the new function do_reachable_revlist().  The latter takes care to
> ignore SIGPIPE during its operations, and restores the original signal
> handler before returning.
>
> However, a sigchain_pop(SIGPIPE) call remained in the error handling
> code of has_unreachable(), which does nothing because the stack is
> empty after do_reachable_revlist() cleaned up after itself.  Remove it.

Thanks for noticing. Your analysis seems correct to me after a quick
inspection of the code, so this has my:

  Reviewed-by: Taylor Blau <me@xxxxxxxxxxxx>

> Signed-off-by: René Scharfe <l.s.r@xxxxxx>
> ---
>  upload-pack.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/upload-pack.c b/upload-pack.c
> index d087113d23e..1b068da0d26 100644
> --- a/upload-pack.c
> +++ b/upload-pack.c
> @@ -731,7 +731,6 @@ static int has_unreachable(struct object_array *src, enum allow_uor allow_uor)
>  	return 0;
>
>  error:
> -	sigchain_pop(SIGPIPE);
>  	if (cmd.out >= 0)
>  		close(cmd.out);
>  	return 1;
> --
> 2.28.0

Thanks,
Taylor



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