From 843b298e623b10f8ff965a68534bf64311ef97de Mon Sep 17 00:00:00 2001
From: Xin LI <delphij@FreeBSD.org>
Date: Fri, 22 Mar 2013 22:46:19 +0000
Subject: [PATCH] Don't attempt to reference sc before testing whether it's
 NULL.

Submitted by:	Sascha Wildner
Obtained from:	DragonFly
MFC after:	2 weeks
---
 sys/dev/mfi/mfi_disk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/mfi/mfi_disk.c b/sys/dev/mfi/mfi_disk.c
index 0440bd3ffaf..7160b0f33ab 100644
--- a/sys/dev/mfi/mfi_disk.c
+++ b/sys/dev/mfi/mfi_disk.c
@@ -261,7 +261,6 @@ mfi_disk_strategy(struct bio *bio)
 	struct mfi_softc *controller;
 
 	sc = bio->bio_disk->d_drv1;
-	controller = sc->ld_controller;
 
 	if (sc == NULL) {
 		bio->bio_error = EINVAL;
@@ -271,6 +270,7 @@ mfi_disk_strategy(struct bio *bio)
 		return;
 	}
 
+	controller = sc->ld_controller;
 	if (controller->adpreset) {
 		bio->bio_error = EBUSY;
 		return;