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From: Sean Bruno <sbruno@FreeBSD.org>
Date: Sun, 23 Sep 2012 20:24:17 +0000 (UTC)
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Subject: svn commit: r240874 - stable/8/sys/dev/mfi
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Author: sbruno
Date: Sun Sep 23 20:24:17 2012
New Revision: 240874
URL: http://svn.freebsd.org/changeset/base/240874

Log:
  MFC r238371
  
  When an MFI command fails, the driver needs to set bio->bio_resid so that
  the upper levels notice.  Otherwise we see commands silently failing leading
  to data corruption.  This mirrors dadone()
  
  Submitted by: Andrew Boyer aboyer@averesystems.com

Modified:
  stable/8/sys/dev/mfi/mfi_disk.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/dev/   (props changed)
  stable/8/sys/dev/mfi/   (props changed)

Modified: stable/8/sys/dev/mfi/mfi_disk.c
==============================================================================
--- stable/8/sys/dev/mfi/mfi_disk.c	Sun Sep 23 20:17:28 2012	(r240873)
+++ stable/8/sys/dev/mfi/mfi_disk.c	Sun Sep 23 20:24:17 2012	(r240874)
@@ -298,6 +298,7 @@ mfi_disk_complete(struct bio *bio)
 	hdr = bio->bio_driver1;
 
 	if (bio->bio_flags & BIO_ERROR) {
+		bio->bio_resid = bio->bio_bcount;
 		if (bio->bio_error == 0)
 			bio->bio_error = EIO;
 		disk_err(bio, "hard error", -1, 1);