From: Asias He <asias@redhat.com>
Date: Wed, 27 Feb 2013 05:29:29 +0000 (+0800)
Subject: target/pscsi: Fix page increment
X-Git-Tag: v3.4.36~35
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a5646410c2d80c4dd4692f5f6bc2fcdfc3aa557b;p=karo-tx-linux.git

target/pscsi: Fix page increment

commit 472b72f2db7831d7dbe22ffdff4adee3bd49b05d upstream.

The page++ is wrong. It makes bio_add_pc_page() pointing to a wrong page
address if the 'while (len > 0 && data_len > 0) { ... }' loop is
executed more than one once.

Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 94c905fcbceb..d084ba328af0 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -1042,7 +1042,6 @@ static int pscsi_map_sg(struct se_task *task, struct scatterlist *task_sg,
 				bio = NULL;
 			}
 
-			page++;
 			len -= bytes;
 			data_len -= bytes;
 			off = 0;