4.19-stable patches

added patches:
	drm-amdgpu-fix-oops-when-pp_funcs-is-unset-in-acpi-event.patch

diff --git a/queue-4.19/drm-amdgpu-fix-oops-when-pp_funcs-is-unset-in-acpi-event.patch b/queue-4.19/drm-amdgpu-fix-oops-when-pp_funcs-is-unset-in-acpi-event.patch
new file mode 100644 (file)
index 0000000..ca84eb6
--- /dev/null
+++ b/queue-4.19/drm-amdgpu-fix-oops-when-pp_funcs-is-unset-in-acpi-event.patch
@@ -0,0 +1,35 @@
+From 5932d260a8d85a103bd6c504fbb85ff58b156bf9 Mon Sep 17 00:00:00 2001
+From: Aaron Ma <aaron.ma@canonical.com>
+Date: Fri, 3 Apr 2020 22:34:19 +0800
+Subject: drm/amdgpu: Fix oops when pp_funcs is unset in ACPI event
+
+From: Aaron Ma <aaron.ma@canonical.com>
+
+commit 5932d260a8d85a103bd6c504fbb85ff58b156bf9 upstream.
+
+On ARCTURUS and RENOIR, powerplay is not supported yet.
+When plug in or unplug power jack, ACPI event will issue.
+Then kernel NULL pointer BUG will be triggered.
+Check for NULL pointers before calling.
+
+Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c |    3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+@@ -71,7 +71,8 @@ void amdgpu_pm_acpi_event_handler(struct
+                       adev->pm.ac_power = true;
+               else
+                       adev->pm.ac_power = false;
+-              if (adev->powerplay.pp_funcs->enable_bapm)
++              if (adev->powerplay.pp_funcs &&
++                  adev->powerplay.pp_funcs->enable_bapm)
+                       amdgpu_dpm_enable_bapm(adev, adev->pm.ac_power);
+               mutex_unlock(&adev->pm.mutex);
+       }

diff --git a/queue-4.19/series b/queue-4.19/series
index ea249aa07dcd86487f3088853ff782032ba0ac2f..0d4389a6861f17fab2889ebfcbba91dcb344b306 100644 (file)
--- a/queue-4.19/series
+++ b/queue-4.19/series
@@ -20,3 +20,4 @@ lib-mpi-fix-building-for-powerpc-with-clang.patch
 net-bcmgenet-suppress-warnings-on-failed-rx-skb-allo.patch
 net-systemport-suppress-warnings-on-failed-rx-skb-al.patch
 sctp-fix-shutdown-ctsn-ack-in-the-peer-restart-case.patch
+drm-amdgpu-fix-oops-when-pp_funcs-is-unset-in-acpi-event.patch