tree b1dffb15dba1a924bba289beb78ea23f34782c9c
parent a115413de13ae6beb0cbfc198afe385a261ab284
author Xiaotian Feng <dfeng@redhat.com> 1291021435 +0100
committer Jens Axboe <jaxboe@fusionio.com> 1291021490 +0100

block: check for proper length of iov entries earlier in blk_rq_map_user_iov()

commit 9284bcf checks for proper length of iov entries in
blk_rq_map_user_iov(). But if the map is unaligned, kernel
will break out the loop without checking for the proper length.
So we need to check the proper length before the unalign check.

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>