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From 422e0ecc4fa87e81e570be45cee5471d1ffaaf00 Mon Sep 17 00:00:00 2001
From: Hawking Zhang <Hawking.Zhang@amd.com>
Date: Sat, 31 Aug 2019 13:18:40 +0800
Subject: [PATCH 3696/4256] drm/amdgpu: check mmhub_funcs pointer before
refering to it
mmhub callback functions are not initialized for all the ASICs
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index baefc8a3a2bb..81352d01fbee 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -795,7 +795,7 @@ static int gmc_v9_0_ecc_late_init(void *handle)
goto umc_late_fini;
}
- if (adev->mmhub_funcs->ras_late_init) {
+ if (adev->mmhub_funcs && adev->mmhub_funcs->ras_late_init) {
r = adev->mmhub_funcs->ras_late_init(adev);
if (r)
return r;
--
2.17.1
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