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linux/block/bsg-lib.c
zhong jiang 4725549192 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>
2018-08-01 09:13:03 -06:00

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