[SRU][F/U/OEM-5.6][PATCH 0/1]UBUNTU: SAUCE: Fix amdgpu hang during acpi event

[Aaron Ma]

BugLink: https://bugs.launchpad.net/bugs/1871316

[Impact]
On new amdgpu ARCTURUS and RENOIR, system got call trace and hang
because of some acpi events.

[Fix]
This is a kernel NULL pointer bug.
Check for NULL pointers before calling.

[Test]
Verified on hw, amdgpu works fine.

[Regression Potential]
Low, it's safe to check NULL pointers.

This new amdgpu is supported since 5.4, no need for lower version
kernel.
Please use git am -3 to apply.

Aaron Ma (1):
  UBUNTU: SAUCE: drm/amdgpu: Fix oops when pp_funcs is unset in ACPI
    event

 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
2.17.1