From: Milan Broz <mbroz@redhat.com>
Date: Thu, 13 Dec 2007 14:15:51 +0000 (+0000)
Subject: dm crypt: fix write endio
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=adfe47702c4726b3e045f9f83178def02833be4c;p=openwrt%2Fstaging%2Fblogic.git

dm crypt: fix write endio

Fix BIO_UPTODATE test for write io.

Cc: stable@kernel.org
Cc: dm-crypt@saout.de
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 28c6ae095c56..30d51a0c0116 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -511,6 +511,9 @@ static void crypt_endio(struct bio *clone, int error)
 	struct crypt_config *cc = io->target->private;
 	unsigned read_io = bio_data_dir(clone) == READ;
 
+	if (unlikely(!bio_flagged(clone, BIO_UPTODATE) && !error))
+		error = -EIO;
+
 	/*
 	 * free the processed pages
 	 */
@@ -519,10 +522,8 @@ static void crypt_endio(struct bio *clone, int error)
 		goto out;
 	}
 
-	if (unlikely(!bio_flagged(clone, BIO_UPTODATE))) {
-		error = -EIO;
+	if (unlikely(error))
 		goto out;
-	}
 
 	bio_put(clone);
 	kcryptd_queue_crypt(io);