linux-kernel - [ 015/100] target/pscsi: Fix page increment

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Message-Id: <20130312223124.628131873@linuxfoundation.org>
Date:	Tue, 12 Mar 2013 15:31:00 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Asias He <asias@...hat.com>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: [ 015/100] target/pscsi: Fix page increment

3.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Asias He <asias@...hat.com>

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@...hat.com>
Signed-off-by: Nicholas Bellinger <nab@...ux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/target/target_core_pscsi.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -940,7 +940,6 @@ pscsi_map_sg(struct se_cmd *cmd, struct
 				bio = NULL;
 			}
 
-			page++;
 			len -= bytes;
 			data_len -= bytes;
 			off = 0;


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