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>
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@ -48,9 +48,8 @@ static int bsg_transport_fill_hdr(struct request *rq, struct sg_io_v4 *hdr,
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job->request_len = hdr->request_len;
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job->request_len = hdr->request_len;
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job->request = memdup_user(uptr64(hdr->request), hdr->request_len);
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job->request = memdup_user(uptr64(hdr->request), hdr->request_len);
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if (IS_ERR(job->request))
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return PTR_ERR(job->request);
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return PTR_ERR_OR_ZERO(job->request);
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return 0;
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}
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}
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static int bsg_transport_complete_rq(struct request *rq, struct sg_io_v4 *hdr)
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static int bsg_transport_complete_rq(struct request *rq, struct sg_io_v4 *hdr)
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