From 951fd0bb22cd3921f3213a6cd42c5d086aec0b2f Mon Sep 17 00:00:00 2001
From: Philipp Reisner <philipp.reisner@linbit.com>
Date: Thu, 20 May 2010 13:35:31 +0200
Subject: [PATCH] --- yaml --- r: 196882 b: refs/heads/master c:
 23ce422748def9652fdc019f740cd7900fa2fe3b h: refs/heads/master v: v3

---
 [refs]                                   | 2 +-
 trunk/drivers/block/drbd/drbd_receiver.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 39d2f892ee35..9ae560e239e7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fc8ce1941d668c70e57a07f13f5a63e73e5dbff3
+refs/heads/master: 23ce422748def9652fdc019f740cd7900fa2fe3b
diff --git a/trunk/drivers/block/drbd/drbd_receiver.c b/trunk/drivers/block/drbd/drbd_receiver.c
index 461d9872d4d3..bc9ab7fb2cc7 100644
--- a/trunk/drivers/block/drbd/drbd_receiver.c
+++ b/trunk/drivers/block/drbd/drbd_receiver.c
@@ -98,6 +98,10 @@ static struct page *page_chain_del(struct page **head, int n)
 	BUG_ON(!head);
 
 	page = *head;
+
+	if (!page)
+		return NULL;
+
 	while (page) {
 		tmp = page_chain_next(page);
 		if (--n == 0)