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| author | Lu Yao <yaolu@kylinos.cn> | 2023-11-23 09:22:34 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-29 16:49:23 -0500 |
| commit | 7b194fdccb8458779687063e582cf218a0920c29 (patch) | |
| tree | b22905482eb00d617a2313033c9b08f8b23ef09e /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | |
| parent | b0e5c88d8a88bdcc9834409387e10a5ae1b2753e (diff) | |
drm/amdgpu: Fix cat debugfs amdgpu_regs_didt causes kernel null pointer
For 'AMDGPU_FAMILY_SI' family cards, in 'si_common_early_init' func, init
'didt_rreg' and 'didt_wreg' to 'NULL'. But in func
'amdgpu_debugfs_regs_didt_read/write', using 'RREG32_DIDT' 'WREG32_DIDT'
lacks of relevant judgment. And other 'amdgpu_ip_block_version' that use
these two definitions won't be added for 'AMDGPU_FAMILY_SI'.
So, add null pointer judgment before calling.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Lu Yao <yaolu@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
0 files changed, 0 insertions, 0 deletions