linux-kernel - [PATCH 5.3 161/166] dm zoned: fix invalid memory access

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Message-Id: <20191006171226.412783993@linuxfoundation.org>
Date:   Sun,  6 Oct 2019 19:22:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org
Subject: [PATCH 5.3 161/166] dm zoned: fix invalid memory access

From: Mikulas Patocka <mpatocka@...hat.com>

commit 0c8e9c2d668278652af028c3cc068c65f66342f4 upstream.

Commit 75d66ffb48efb30f2dd42f041ba8b39c5b2bd115 ("dm zoned: properly
handle backing device failure") triggers a coverity warning:

---
 drivers/md/dm-zoned-target.c |    2 --
 1 file changed, 2 deletions(-)

--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -134,8 +134,6 @@ static int dmz_submit_bio(struct dmz_tar
 
 	refcount_inc(&bioctx->ref);
 	generic_make_request(clone);
-	if (clone->bi_status == BLK_STS_IOERR)
-		return -EIO;
 
 	if (bio_op(bio) == REQ_OP_WRITE && dmz_is_seq(zone))
 		zone->wp_block += nr_blocks;