From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 25 Apr 2022 11:56:48 +0000 (+0300)
Subject: dm integrity: fix error code in dm_integrity_ctr()
X-Git-Tag: v4.19.246~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58953fd38d45e1d4fd3c83be8f18c9f249892a0d;p=thirdparty%2Fkernel%2Fstable.git

dm integrity: fix error code in dm_integrity_ctr()

commit d3f2a14b8906df913cb04a706367b012db94a6e8 upstream.

The "r" variable shadows an earlier "r" that has function scope.  It
means that we accidentally return success instead of an error code.
Smatch has a warning for this:

	drivers/md/dm-integrity.c:4503 dm_integrity_ctr()
	warn: missing error code 'r'

Fixes: 7eada909bfd7 ("dm: add integrity target")
Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index b0105d53918ab..8456e82409e20 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -3565,8 +3565,6 @@ try_smaller_buffer:
 	}
 
 	if (should_write_sb) {
-		int r;
-
 		init_journal(ic, 0, ic->journal_sections, 0);
 		r = dm_integrity_failed(ic);
 		if (unlikely(r)) {