From: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Date: Mon, 20 Dec 2010 22:56:09 +0000 (-0800)
Subject: xenbus: Fix memory leak on release
X-Git-Tag: v2.6.38-rc2~22^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=6a5b3beff916a19e7672f8c0330b4f82ed367be2

xenbus: Fix memory leak on release

Pending responses were leaked on close.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---

diff --git a/drivers/xen/xenfs/xenbus.c b/drivers/xen/xenfs/xenbus.c
index 55791dd1105f..8f6c7d4b3e4d 100644
--- a/drivers/xen/xenfs/xenbus.c
+++ b/drivers/xen/xenfs/xenbus.c
@@ -543,6 +543,7 @@ static int xenbus_file_release(struct inode *inode, struct file *filp)
 	struct xenbus_file_priv *u = filp->private_data;
 	struct xenbus_transaction_holder *trans, *tmp;
 	struct watch_adapter *watch, *tmp_watch;
+	struct read_buffer *rb, *tmp_rb;
 
 	/*
 	 * No need for locking here because there are no other users,
@@ -561,6 +562,10 @@ static int xenbus_file_release(struct inode *inode, struct file *filp)
 		free_watch_adapter(watch);
 	}
 
+	list_for_each_entry_safe(rb, tmp_rb, &u->read_buffers, list) {
+		list_del(&rb->list);
+		kfree(rb);
+	}
 	kfree(u);
 
 	return 0;