linux-kernel - [021/101] net/9p: Fix the msize calculation.

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Message-Id: <20111102222741.573857486@clark.kroah.org>
Date:	Wed, 02 Nov 2011 15:26:05 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk,
	=?ISO-8859-15?q?Venkateswararao=20Jujjuri=20@...e.de,
	"?= <jvrao@...ux.vnet.ibm.com>, "@suse.de, Aneesh@...e.de,
	Kumar@...e.de, K.V@...e.de,
	" <aneesh.kumar@...ux.vnet.ibm.com>, Eric Van Hensbergen <ericvh@...il.com>"@suse.de
Subject: [021/101] net/9p: Fix the msize calculation.

2.6.33-longterm review patch.  If anyone has any objections, please let us know.

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

From: "Venkateswararao Jujjuri (JV)" <jvrao@...ux.vnet.ibm.com>

commit c9ffb05ca5b5098d6ea468c909dd384d90da7d54 upstream.

msize represents the maximum PDU size that includes P9_IOHDRSZ.

Signed-off-by: Venkateswararao Jujjuri "<jvrao@...ux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 net/9p/client.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -708,8 +708,8 @@ struct p9_client *p9_client_create(const
 	if (err)
 		goto destroy_fidpool;
 
-	if ((clnt->msize+P9_IOHDRSZ) > clnt->trans_mod->maxsize)
-		clnt->msize = clnt->trans_mod->maxsize-P9_IOHDRSZ;
+	if (clnt->msize > clnt->trans_mod->maxsize)
+		clnt->msize = clnt->trans_mod->maxsize;
 
 	err = p9_client_version(clnt);
 	if (err)


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