From 78aa02c713fcf19e9bc8511ab61a5fd6c877cc01 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 30 Sep 2017 11:14:13 +0300
Subject: [PATCH] drm/amdgpu: Potential uninitialized variable in
amdgpu_vm_update_directories()
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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 <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
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 010d14195a5ec..c8c26f21993cc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1244,7 +1244,7 @@ static void amdgpu_vm_invalidate_level(struct amdgpu_vm *vm,
int amdgpu_vm_update_directories(struct amdgpu_device *adev,
struct amdgpu_vm *vm)
{
- int r;
+ int r = 0;
spin_lock(&vm->status_lock);
while (!list_empty(&vm->relocated)) {