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Commit d3db7b48 authored by Dan Carpenter's avatar Dan Carpenter Committed by Philipp Reisner
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drbd: null dereference bug 



epoch is always NULL here.

Signed-off-by: default avatarDan Carpenter <error27@gmail.com>
Signed-off-by: default avatarPhilipp Reisner <philipp.reisner@linbit.com>
parent 98ec286e

drivers/block/drbd/drbd_receiver.c

+1 −1
Original line number Diff line number Diff line
@@ -1224,7 +1224,7 @@ static int receive_Barrier(struct drbd_conf *mdev, struct p_header *h) 
	epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);

	if (!epoch) {

		dev_warn(DEV, "Allocation of an epoch failed, slowing down\n");

		issue_flush = !test_and_set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &epoch->flags);

		issue_flush = !test_and_set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &mdev->current_epoch->flags);

		drbd_wait_ee_list_empty(mdev, &mdev->active_ee);

		if (issue_flush) {

			rv = drbd_flush_after_epoch(mdev, mdev->current_epoch);