From 39c84b8e929dbd4f63be7e04bf1a2bcd92b44177 Mon Sep 17 00:00:00 2001
From: Chengming Gui <Jack.Gui@amd.com>
Date: Tue, 30 Aug 2022 16:33:01 +0800
Subject: [PATCH] drm/amd/amdgpu: skip ucode loading if ucode_size == 0
Git-commit: 39c84b8e929dbd4f63be7e04bf1a2bcd92b44177
Patch-mainline: v6.0-rc4
References: git-fixes
Restrict the ucode loading check to avoid frontdoor loading error.
Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 1036446abc30..9f7a5e393f85 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -2401,7 +2401,7 @@ static int psp_load_smu_fw(struct psp_context *psp)
static bool fw_load_skip_check(struct psp_context *psp,
struct amdgpu_firmware_info *ucode)
{
- if (!ucode->fw)
+ if (!ucode->fw || !ucode->ucode_size)
return true;
if (ucode->ucode_id == AMDGPU_UCODE_ID_SMC &&
--
2.35.3