From: Jie Liu <jeff.liu@oracle.com>
Date: Sun, 4 Aug 2013 12:06:20 +0000 (+0800)
Subject: staging/zcache: Fix memory leak while dropping an o2net_sock_container object
X-Git-Tag: v3.12-rc1~183^2~320
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=98f62b7a082e1e9eb762c7329a704316f6e07698;p=kernel%2Fkernel-generic.git

staging/zcache: Fix memory leak while dropping an o2net_sock_container object

Free sc->sc_page when releasing a struct o2net_sock_container
object to avoid memory leaks.

This issue has been fixed by Younger Liu for OCFS2, so I sync
that patch to zcache as we share the same network code base.

Cc: Younger Liu <younger.liu@huawei.com>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/zcache/ramster/tcp.c b/drivers/staging/zcache/ramster/tcp.c
index f6e1e52..f74881e 100644
--- a/drivers/staging/zcache/ramster/tcp.c
+++ b/drivers/staging/zcache/ramster/tcp.c
@@ -403,6 +403,9 @@ static void sc_kref_release(struct kref *kref)
 	sc->sc_node = NULL;
 
 	r2net_debug_del_sc(sc);
+
+	if (sc->sc_page)
+		__free_page(sc->sc_page);
 	kfree(sc);
 }