This stops clang complaining:

drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:3846:6: warning: variable 'index' is 
used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
        if (ring->is_mes_queue) {
            ^~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:3903:30: note: uninitialized use occurs 
here
        amdgpu_device_wb_free(adev, index);
                                    ^~~~~
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:3846:2: note: remove the 'if' if its 
condition is always false
        if (ring->is_mes_queue) {
        ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:3839:16: note: initialize the variable 
'index' to silence this warning
        unsigned index;
                      ^
                       = 0

Signed-off-by: Mike Lothian <m...@fireburn.co.uk>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index fc289ee54a47..7ce62b12e5b4 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -3836,7 +3836,7 @@ static int gfx_v10_0_ring_test_ib(struct amdgpu_ring 
*ring, long timeout)
        struct amdgpu_device *adev = ring->adev;
        struct amdgpu_ib ib;
        struct dma_fence *f = NULL;
-       unsigned index;
+       unsigned index = 0;
        uint64_t gpu_addr;
        volatile uint32_t *cpu_ptr;
        long r;
-- 
2.35.1

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