[patch] MFI should set bio_resid on command failure

[Andrew Boyer]

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().

-Andrew

Index: sys/dev/mfi/mfi_disk.c
===================================================================
--- sys/dev/mfi/mfi_disk.c	(revision 238071)
+++ sys/dev/mfi/mfi_disk.c	(working copy)
@@ -298,6 +298,7 @@
 	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);

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Andrew Boyer	aboyer at averesystems.com