io_uring: Remove unnecessary null check

Null check kfree is redundant, so remove it.
This is detected by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
YueHaibing 2020-01-07 22:22:44 +08:00 • committed by Jens Axboe
commit 96fd84d83a