[Midnightbsd-cvs] src [8111] trunk/sys/dev/mfi/mfi_disk.c: When an MFI command fails, the driver needs to set bio->bio_resid so that

[laffer1 at midnightbsd.org]

Revision: 8111
          http://svnweb.midnightbsd.org/src/?rev=8111
Author:   laffer1
Date:     2016-09-16 16:28:32 -0400 (Fri, 16 Sep 2016)
Log Message:
-----------
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 at averesystems.com

Modified Paths:
--------------
    trunk/sys/dev/mfi/mfi_disk.c

Modified: trunk/sys/dev/mfi/mfi_disk.c
===================================================================
--- trunk/sys/dev/mfi/mfi_disk.c	2016-09-16 20:27:37 UTC (rev 8110)
+++ trunk/sys/dev/mfi/mfi_disk.c	2016-09-16 20:28:32 UTC (rev 8111)
@@ -306,6 +306,7 @@
 	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);