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nullb: fix error return code in null_init()

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Fix to return error code -ENOMEM from the null_alloc_dev() error
handling case instead of 0, as done elsewhere in this function.

Fixes: 2984c8684f ("nullb: factor disk parameters")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Wei Yongjun 2017-10-17 12:11:46 +00:00 committed by Jens Axboe
parent 519c8e9ffd
commit 30c516d750
1 changed files with 3 additions and 1 deletions
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4
drivers/block/null_blk.c
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@ -1991,8 +1991,10 @@ static int __init null_init(void)
for (i = 0; i < nr_devices; i++) {
dev = null_alloc_dev();
if (!dev)
if (!dev) {
ret = -ENOMEM;
goto err_dev;
}
ret = null_add_dev(dev);
if (ret) {
null_free_dev(dev);