[SCSI] aacraid: Check scsi_bios_ptabe return code

Received from Mark Salyzyn.

scsi_bios_ptable return value is not being checked in aac_biosparm.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index ab383d1f59e2e29489f48e88064093d51e8773e0..3cb68af904561ddeafac166a2b10fb053b3b8398 100644 (file)
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -325,6 +325,8 @@ static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
         *      translations ( 64/32, 128/32, 255/63 ).
         */
        buf = scsi_bios_ptable(bdev);
+       if (!buf)
+               return 0;
        if(*(__le16 *)(buf + 0x40) == cpu_to_le16(0xaa55)) {
                struct partition *first = (struct partition * )buf;
                struct partition *entry = first;