This is a note to let you know that I've just added the patch titled

drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories()

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: drm-amdgpu-potential-uninitialized-variable-in-amdgpu_vm_update_directories.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

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: 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

From: Dan Carpenter dan.carpenter@oracle.com

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 christian.koenig@amd.com Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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)

Patches currently in stable-queue which might be from dan.carpenter@oracle.com are

queue-4.9/drm-amdgpu-potential-uninitialized-variable-in-amdgpu_vce_ring_parse_cs.patch queue-4.9/drm-amdgpu-potential-uninitialized-variable-in-amdgpu_vm_update_directories.patch