commit d07c9c10e5620c632aae9cac2b609033398f6139
author Philipp Reisner <philipp.reisner@linbit.com> Thu Jan 20 16:49:33 2011 +0100
committer Philipp Reisner <philipp.reisner@linbit.com> Thu Mar 10 11:47:59 2011 +0100
tree 32bc11c4e9093068f4a363c6d8a8b77316350209
parent cd88d030d41a9b0100fd5fee872024e6ebc8b276

drbd: We can not process BIOs with a size of 0

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

drivers/block/drbd/drbd_receiver.c

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 432fe8f..e935493 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1237,6 +1237,7 @@
 
 	data_size -= dgs;
 
+	ERR_IF(data_size == 0) return NULL;
 	ERR_IF(data_size &  0x1ff) return NULL;
 	ERR_IF(data_size >  DRBD_MAX_BIO_SIZE) return NULL;