uchun
> Subject: [PATCH] drm/amdgpu: fix NULL pointer access issue when unloading
> driver
>
> When unloading driver by "modprobe -r amdgpu", one NULL pointer
> dereference bug occurs in ras debugfs releasing. The cause is the duplicated
> debugfs_remove, as
When unloading driver by "modprobe -r amdgpu", one NULL pointer
dereference bug occurs in ras debugfs releasing. The cause is the
duplicated debugfs_remove, as drm debugfs_root dir has been cleaned
up already by drm_minor_unregister.
BUG: kernel NULL pointer dereference, address: 00a0
