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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>
This commit is contained in:
zhong jiang 2018-08-01 00:13:14 +08:00 committed by Jens Axboe
parent 08fcf81328
commit 4725549192
1 changed files with 2 additions and 3 deletions
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block/bsg-lib.c
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@ -48,9 +48,8 @@ static int bsg_transport_fill_hdr(struct request *rq, struct sg_io_v4 *hdr,
job->request_len = hdr->request_len;
job->request = memdup_user(uptr64(hdr->request), hdr->request_len);
if (IS_ERR(job->request))
return PTR_ERR(job->request);
return 0;
return PTR_ERR_OR_ZERO(job->request);
}
static int bsg_transport_complete_rq(struct request *rq, struct sg_io_v4 *hdr)