netdev - [patch] xen-netback: double free on unload

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Date:	Fri, 21 Jun 2013 09:20:08 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Ian Campbell <ian.campbell@...rix.com>
Cc:	xen-devel@...ts.xensource.com, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] xen-netback: double free on unload

There is a typo here, "i" vs "j", so we would crash on module_exit().

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index a0b50ad..130bcb2 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1968,8 +1968,8 @@ static void __exit netback_fini(void)
 		del_timer_sync(&netbk->net_timer);
 		kthread_stop(netbk->task);
 		for (j = 0; j < MAX_PENDING_REQS; j++) {
-			if (netbk->mmap_pages[i])
-				__free_page(netbk->mmap_pages[i]);
+			if (netbk->mmap_pages[j])
+				__free_page(netbk->mmap_pages[j]);
 		}
 	}
 
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