Otherwise the field ends up being used uninitialized when
enabling modifiers, failing validation with high likelyhood.

v4: Use memset

Signed-off-by: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
(for v1)
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
index e2c2eb45a793..0bf7d36c6686 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -207,6 +207,7 @@ static int amdgpufb_create(struct drm_fb_helper *helper,
        int ret;
        unsigned long tmp;
 
+       memset(&mode_cmd, 0, sizeof(mode_cmd));
        mode_cmd.width = sizes->surface_width;
        mode_cmd.height = sizes->surface_height;
 
-- 
2.28.0

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