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drbd: null dereference bug

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epoch is always NULL here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
This commit is contained in:
Dan Carpenter 2010-01-23 15:45:22 +03:00 committed by Philipp Reisner
parent 98ec286e01
commit d3db7b485a
1 changed files with 1 additions and 1 deletions
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2
drivers/block/drbd/drbd_receiver.c
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@ -1224,7 +1224,7 @@ static int receive_Barrier(struct drbd_conf *mdev, struct p_header *h)
epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO); epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
if (!epoch) { if (!epoch) {
dev_warn(DEV, "Allocation of an epoch failed, slowing down\n"); 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); drbd_wait_ee_list_empty(mdev, &mdev->active_ee);
if (issue_flush) { if (issue_flush) {
rv = drbd_flush_after_epoch(mdev, mdev->current_epoch); rv = drbd_flush_after_epoch(mdev, mdev->current_epoch);