diff options
-rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 461d9872d4d3..bc9ab7fb2cc7 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c | |||
@@ -98,6 +98,10 @@ static struct page *page_chain_del(struct page **head, int n) | |||
98 | BUG_ON(!head); | 98 | BUG_ON(!head); |
99 | 99 | ||
100 | page = *head; | 100 | page = *head; |
101 | |||
102 | if (!page) | ||
103 | return NULL; | ||
104 | |||
101 | while (page) { | 105 | while (page) { |
102 | tmp = page_chain_next(page); | 106 | tmp = page_chain_next(page); |
103 | if (--n == 0) | 107 | if (--n == 0) |