[PATCH] drm/amdgpu: Initialize value of r in amdgpu_fill_buffer()

[Souptick Joarder]

From: "Souptick Joarder (HPE)" <jrdr.li...@gmail.com>

Kernel test robot reported warning ->
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2129:2: warning: Undefined
or garbage value returned to caller [clang-analyzer-core.
uninitialized.UndefReturn]

Initialize r inside amdgpu_fill_buffer().

Reported-by: kernel test robot <l...@intel.com>
Signed-off-by: Souptick Joarder (HPE) <jrdr.li...@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 414a22dddc78..5fafb223177f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -2089,7 +2089,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
        struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
        struct dma_fence *fence = NULL;
        struct amdgpu_res_cursor dst;
-       int r;
+       int r = 0;
 
        if (!adev->mman.buffer_funcs_enabled) {
                DRM_ERROR("Trying to clear memory with ring turned off.\n");
-- 
2.25.1