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cciss: use check_signature() 

Use check_signature() to find a signature in the mmio address.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Mike Miller <mike.miller@hp.com>
Cc: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Akinobu Mita 2012-11-08 16:12:23 -08:00 committed by Jens Axboe
parent 1f118bc479
commit d48c152a41
1 changed files with 2 additions and 5 deletions
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7
drivers/block/cciss.c
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@ -42,8 +42,8 @@
#include <linux/compat.h>
#include <linux/mutex.h>
#include <linux/bitmap.h>
#include <linux/io.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/dma-mapping.h>
#include <linux/blkdev.h>
@ -4267,10 +4267,7 @@ static void __devinit cciss_find_board_params(ctlr_info_t *h)
static inline bool CISS_signature_present(ctlr_info_t *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;
}