From: Roel Kluin <roel.kluin@gmail.com>
Date: Wed, 11 Aug 2010 01:01:17 +0000 (-0700)
Subject: dc395x: decrease iteration for tag_number of max_command in start_scsi()
X-Git-Tag: Ubuntu-snapdragon-4.4.0-1050.54~20886
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=d8187b945aa4ed9ea298518e3dac691ea09724e5;p=mirror_ubuntu-artful-kernel.git

dc395x: decrease iteration for tag_number of max_command in start_scsi()

The tag_number reaches dcb->max_command + 1 after the loop, but when
the tag_number equals dcb->max_command an error message is already
issued. The last iteration therefore appears obsolete.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index bd977be7544e..54f50b07dac7 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -1597,7 +1597,7 @@ static u8 start_scsi(struct AdapterCtlBlk* acb, struct DeviceCtlBlk* dcb,
 		u32 tag_mask = 1;
 		u8 tag_number = 0;
 		while (tag_mask & dcb->tag_mask
-		       && tag_number <= dcb->max_command) {
+		       && tag_number < dcb->max_command) {
 			tag_mask = tag_mask << 1;
 			tag_number++;
 		}