From 9cd48ba5fc9d1699fce31b625c32fd8bc77a28c0 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 30 Sep 2017 11:14:13 +0300 Subject: [PATCH] drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 78aa02c713fcf19e9bc8511ab61a5fd6c877cc01 upstream. After commit ea09729c9302 ("drm/amdgpu: rework page directory filling v2") then it becomes a lot harder to verify that "r" is initialized. My static checker complains and so I've reviewed the code. It does look like it might be buggy... Anyway, it doesn't hurt to set "r" to zero at the start. Reviewed-by: Christian König Signed-off-by: Dan Carpenter Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 968c4260d7a7..47503759906b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -744,7 +744,7 @@ error_free: int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, struct amdgpu_vm *vm) { - int r; + int r = 0; r = amdgpu_vm_update_pd_or_shadow(adev, vm, true); if (r)