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From: Jeff King <peff@peff•net>
To: git@vger•kernel.org
Subject: [PATCH 2/7] upload-pack: do not check NULL return of lookup_unknown_object
Date: Fri, 13 Mar 2015 00:42:25 -0400	[thread overview]
Message-ID: <20150313044224.GB18532@peff.net> (raw)
In-Reply-To: <20150313044101.GA18476@peff.net>

We check whether the return value of lookup_unknown_object
is NULL, but some code paths dereference it before our
check. This turns out not to be capable of causing a
segfault, though. The lookup_unknown_object function will
never return NULL, since the whole point is to allocate an
object struct if it does not find an existing one. So the
code here is not wrong, it is just confusing. Let's just
drop the NULL check.

Signed-off-by: Jeff King <peff@peff•net>
---
 upload-pack.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/upload-pack.c b/upload-pack.c
index c8e8713..aa84576 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -689,8 +689,6 @@ static int mark_our_ref(const char *refname, const unsigned char *sha1)
 		o->flags |= HIDDEN_REF;
 		return 1;
 	}
-	if (!o)
-		die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
 	o->flags |= OUR_REF;
 	return 0;
 }
-- 
2.3.2.472.geadab3c

  parent reply	other threads:[~2015-03-13  4:42 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-13  4:41 [PATCH 0/7] fix transfer.hiderefs with smart http Jeff King
2015-03-13  4:42 ` [PATCH 1/7] upload-pack: fix transfer.hiderefs over smart-http Jeff King
2015-03-13  6:21   ` Junio C Hamano
2015-03-13  4:42 ` Jeff King [this message]
2015-03-13  4:48 ` [PATCH 3/7] t: translate SIGINT to an exit Jeff King
2015-03-13  4:50 ` [PATCH 4/7] t: redirect stderr GIT_TRACE to descriptor 4 Jeff King
2015-03-13  4:51 ` [PATCH 5/7] t: pass GIT_TRACE through Apache Jeff King
2015-03-13  4:53 ` [PATCH 6/7] t5541: move run_with_cmdline_limit to test-lib.sh Jeff King
2015-03-13  6:45   ` Eric Sunshine
2015-03-13  4:57 ` [PATCH 7/7] t5551: make EXPENSIVE test cheaper Jeff King
2015-03-13  4:59 ` [PATCH 0/7] fix transfer.hiderefs with smart http Jeff King
2015-03-13  5:21   ` Duy Nguyen

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