NVMe: cq_vector should be signed
authorJens Axboe <axboe@fb.com>
Thu, 15 Jan 2015 22:19:10 +0000 (15:19 -0700)
committerJens Axboe <axboe@fb.com>
Thu, 15 Jan 2015 22:19:10 +0000 (15:19 -0700)
This was inadvertently dropped from an earlier commit, otherwise
the check against cq_vector == -1 to prevent double free doesn't
make any sense.

Fixes: 2b25d981790b
Signed-off-by: Jens Axboe <axboe@fb.com>

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