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| author |   zhengbin <zhengbin13@huawei.com> | 2019-02-20 21:27:05 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-02-28 14:01:36 -0700 |
| commit | 4d7c1d3fd7c7eda7dea351f071945e843a46c145 (patch) | |
| tree | ee56665588e6be4257fd7ac2d787e00ad6f2bb7a /drivers/block/null_blk_main.c | |
| parent | fs: fix guard_bio_eod to check for real EOD errors (diff) | |
| download | linux-dev-4d7c1d3fd7c7eda7dea351f071945e843a46c145.tar.xz linux-dev-4d7c1d3fd7c7eda7dea351f071945e843a46c145.zip | |
block: fix NULL pointer dereference in register_disk
If __device_add_disk-->bdi_register_owner-->bdi_register-->
bdi_register_va-->device_create_vargs fails, bdi->dev is still
NULL, __device_add_disk-->register_disk will visit bdi->dev->kobj.
This patch fixes that.
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/null_blk_main.c')
0 files changed, 0 insertions, 0 deletions