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

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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner
2011-01-20 16:49:33 +01:00
parent cd88d030d4
commit d07c9c10e5
1 changed files with 1 additions and 0 deletions
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drivers/block/drbd/drbd_receiver.c
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@@ -1237,6 +1237,7 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __
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;