linux-kernel - [PATCH 3.12 033/170] SUNRPC: Fix a module reference leak in svc_handle

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Message-Id: <be03560faf3cfd894fd783dd8f098a8c4a4be4cb.1405685481.git.jslaby@suse.cz>
Date:	Fri, 18 Jul 2014 14:10:38 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Trond Myklebust <trond.myklebust@...marydata.com>,
	"J. Bruce Fields" <bfields@...hat.com>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 033/170] SUNRPC: Fix a module reference leak in svc_handle_xprt

From: Trond Myklebust <trond.myklebust@...marydata.com>

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

===============

commit c789102c20bbbdda6831a273e046715be9d6af79 upstream.

If the accept() call fails, we need to put the module reference.

Signed-off-by: Trond Myklebust <trond.myklebust@...marydata.com>
Signed-off-by: J. Bruce Fields <bfields@...hat.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 net/sunrpc/svc_xprt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 80a6640f329b..b9aad4723a9d 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -730,6 +730,8 @@ static int svc_handle_xprt(struct svc_rqst *rqstp, struct svc_xprt *xprt)
 		newxpt = xprt->xpt_ops->xpo_accept(xprt);
 		if (newxpt)
 			svc_add_new_temp_xprt(serv, newxpt);
+		else
+			module_put(xprt->xpt_class->xcl_owner);
 	} else if (xprt->xpt_ops->xpo_has_wspace(xprt)) {
 		/* XPT_DATA|XPT_DEFERRED case: */
 		dprintk("svc: server %p, pool %u, transport %p, inuse=%d\n",
-- 
2.0.0

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