[AMD Official Use Only - AMD Internal Distribution Only]
This patch is
Reviewed-by: Jesse Zhang <jesse.zhang@xxxxxxx>
-----Original Message-----
From: Huang, Tim <Tim.Huang@xxxxxxx>
Sent: Friday, August 9, 2024 3:34 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Koenig, Christian <Christian.Koenig@xxxxxxx>; Zhang, Jesse(Jie) <Jesse.Zhang@xxxxxxx>; Zhou, Bob <Bob.Zhou@xxxxxxx>; Huang, Tim <Tim.Huang@xxxxxxx>
Subject: [PATCH 2/2] 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@xxxxxxx>
---
drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c | 2 ++
1 file changed, 2 insertions(+)
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)))
--
2.43.0
