From 186fb12e7a7b038c2710ceb2fb74068f1b5d55a4 Mon Sep 17 00:00:00 2001 From: Tim Huang Date: Wed, 7 Aug 2024 17:15:12 +0800 Subject: [PATCH] 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 Reviewed-by: Jesse Zhang Signed-off-by: Alex Deucher --- 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)))