Commit 51dfc0a4 authored by Tim Huang's avatar Tim Huang Committed by Alex Deucher
Browse files

drm/amdgpu: fix mc_data out-of-bounds read warning 



Clear warning that read mc_data[i-1] may out-of-bounds.

Signed-off-by: default avatarTim Huang <Tim.Huang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 8944acd0

drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c

+2 −0
Original line number Diff line number Diff line
@@ -1484,6 +1484,8 @@ int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev, 
										(u32)le32_to_cpu(*((u32 *)reg_data + j));

									j++;

								} else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {

									if (i == 0)

										continue;

									reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =

										reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];

								}