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

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.

Signed-off-by: René Scharfe <redacted>
---
 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

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 [off-list ref]

Thanks,
Taylor