[dm-devel] [patch 03/73] dm crypt: fix write endio

[Greg KH <gregkh suse de>]

2.6.23-stable review patch.  If anyone has any objections, please let us know.
------------------
From: Milan Broz <mbroz redhat com>

patch adfe47702c4726b3e045f9f83178def02833be4c in mainline.

Fix BIO_UPTODATE test for write io.

Signed-off-by: Milan Broz <mbroz redhat com>
Signed-off-by: Alasdair G Kergon <agk redhat com>
Signed-off-by: Greg Kroah-Hartman <gregkh suse de>

---
 drivers/md/dm-crypt.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -515,6 +515,9 @@ static int crypt_endio(struct bio *clone
 	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, even if
 	 * it's only a partially completed write
@@ -529,10 +532,8 @@ static int crypt_endio(struct bio *clone
 	if (!read_io)
 		goto out;
 
-	if (unlikely(!bio_flagged(clone, BIO_UPTODATE))) {
-		error = -EIO;
+	if (unlikely(error))
 		goto out;
-	}
 
 	bio_put(clone);
 	io->post_process = 1;

--