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| author | Leo Li <sunpeng.li@amd.com> | 2019-04-18 18:53:58 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-04-24 01:27:25 +0300 |
| commit | bb20be7510203db17c6c09f888cf328e307f1701 (patch) | |
| tree | 269b8421a28e63de42bd5b1c05012b07cf67fc65 /net/lapb/lapb_subr.c | |
| parent | 3b8cea6f645c909783455265f2cb0fb64fd68f51 (diff) | |
| download | linux-bb20be7510203db17c6c09f888cf328e307f1701.tar.xz | |
drm/amdgpu: Check if SW SMU is supported before accessing funcs
smu.ppt_funcs is only initialized for ASICs supporting SW SMU.
On a Hawaii ASIC, attempting to access the udev attribute
ATTRS{power_dpm_state} will cause a null pointer deref in
amdgpu_get_dpm_state() because of this.
Fix by checking if SW SMU is supported first.
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions