Commit bc8f6d42 authored by Hawking Zhang's avatar Hawking Zhang Committed by Alex Deucher
Browse files

drm/amdgpu: Fix null pointer dereference 



amdgpu_reg_state_sysfs_fini could be invoked at the
time when asic_func is even not initialized, i.e.,
amdgpu_discovery_init fails for some reason.

Signed-off-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 89a7c0bd

drivers/gpu/drm/amd/include/amdgpu_reg_state.h

+1 −1
Original line number Diff line number Diff line
@@ -138,7 +138,7 @@ static inline size_t amdgpu_reginst_size(uint16_t num_inst, size_t inst_size, 
}



#define amdgpu_asic_get_reg_state_supported(adev) \

	((adev)->asic_funcs->get_reg_state ? 1 : 0)

	(((adev)->asic_funcs && (adev)->asic_funcs->get_reg_state) ? 1 : 0)



#define amdgpu_asic_get_reg_state(adev, state, buf, size)                  \

	((adev)->asic_funcs->get_reg_state ?                               \