commit 0fc9fd4016ae03b0f5da5d7156644755c94783c4
author Akinobu Mita <akinobu.mita@gmail.com> Wed Apr 04 22:14:59 2012 +0900
committer James Bottomley <JBottomley@Parallels.com> Mon Apr 23 23:16:56 2012 +0100
tree 49e77ef2b052017c345a31d12e8375b1ac666fcd
parent 715525057423eeb6308d2c605ae9ec8325e43858

[SCSI] hpsa: use check_signature

Use check_signature to find a signature in the mmio address.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/hpsa.c

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 500e20d..f490474 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3842,10 +3842,7 @@
 
 static inline bool hpsa_CISS_signature_present(struct ctlr_info *h)
 {
-	if ((readb(&h->cfgtable->Signature[0]) != 'C') ||
-	    (readb(&h->cfgtable->Signature[1]) != 'I') ||
-	    (readb(&h->cfgtable->Signature[2]) != 'S') ||
-	    (readb(&h->cfgtable->Signature[3]) != 'S')) {
+	if (!check_signature(h->cfgtable->Signature, "CISS", 4)) {
 		dev_warn(&h->pdev->dev, "not a valid CISS config table\n");
 		return false;
 	}