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(parent: b640201) | patch
block: sunvdc: add check for mdesc_grab() returning NULL
authorLiang He <windhl@126.com>
Wed, 15 Mar 2023 06:20:32 +0000 (14:20 +0800)
committerJens Axboe <axboe@kernel.dk>
Wed, 15 Mar 2023 14:48:58 +0000 (08:48 -0600)
commit6030363199e3a6341afb467ddddbed56640cbf6a
tree433e822d753a53a5f4e317dff7f693d0301496d7tree | snapshot
parentb6402014cab0481bdfd1ffff3e1dad714e8e1205commit | diff
block: sunvdc: add check for mdesc_grab() returning NULL

In vdc_port_probe(), we should check the return value of mdesc_grab() as
it may return NULL, which can cause potential NPD bug.

Fixes: 43fdf27470b2 ("[SPARC64]: Abstract out mdesc accesses for better MD update handling.")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20230315062032.1741692-1-windhl@126.com
[axboe: style cleanup]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/sunvdc.c diff | blob | history
Domain: System / Kernel;