Commits
Konrad Rzeszutek Wilk committed e93504933ee
xen/blkback: Move the check for misaligned I/O once more.
The commit 976222e05ea5a9959ccf880d7a24efbf79b3c6cf
xen/blkback: Move the check for misaligned I/O higher.
moved it a bit to high. The preq->vbdev was not set, so the
check for misaligned I/O would cause a NULL pointer derefence.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>