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authorTim Huang <tim.huang@amd.com>2024-08-07 11:15:12 +0200
committerAlex Deucher <alexander.deucher@amd.com>2024-08-21 04:14:14 +0200
commit186fb12e7a7b038c2710ceb2fb74068f1b5d55a4 (patch)
tree4e401db078a69746db78af10301d970214e6c50a /drivers/gpu/drm/amd/pm
parentdrm/amd/amdgpu: allow use kiq to do hdp flush under sriov (diff)
downloadlinux-186fb12e7a7b038c2710ceb2fb74068f1b5d55a4.tar.xz
linux-186fb12e7a7b038c2710ceb2fb74068f1b5d55a4.zip
drm/amd/pm: ensure the fw_info is not null before using it
This resolves the dereference null return value warning reported by Coverity. Signed-off-by: Tim Huang <tim.huang@amd.com> Reviewed-by: Jesse Zhang <jesse.zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm')
-rw-r--r--drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
index ca1c7ae8d146..f06b29e33ba4 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
@@ -1183,6 +1183,8 @@ static int init_overdrive_limits(struct pp_hwmgr *hwmgr,
fw_info = smu_atom_get_data_table(hwmgr->adev,
GetIndexIntoMasterTable(DATA, FirmwareInfo),
&size, &frev, &crev);
+ PP_ASSERT_WITH_CODE(fw_info != NULL,
+ "Missing firmware info!", return -EINVAL);
if ((fw_info->ucTableFormatRevision == 1)
&& (le16_to_cpu(fw_info->usStructureSize) >= sizeof(ATOM_FIRMWARE_INFO_V1_4)))