tree f914b33624a7650377e265e68eb34bde3c35983a
parent 08fcf813281ebcf72c69487c1501ad91b7121cdb
author zhong jiang <zhongjiang@huawei.com> 1533053594 +0800
committer Jens Axboe <axboe@kernel.dk> 1533136383 -0600

block/bsg-lib: use PTR_ERR_OR_ZERO to simplify the flow path

Simplify the code by using the PTR_ERR_OR_ZERO, instead of the
open code. It is better.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>