[PATCH] Fix null pointer dereference in drmmode_output_dpms

Submitted by John Lindgren

Assigned to Nouveau Project

Link to original bug (#106994)

Description

Created attachment 140263
Fix null pointer dereference in drmmode_output_dpms

This fixes an Xorg crash when a Lenovo P50 laptop is undocked, disconnecting it from two external DisplayPort monitors.

Checking for koutput == NULL has precedent in drmmode_output_get_modes.

Patch 140263, "Fix null pointer dereference in drmmode_output_dpms":
0001-Fix-null-pointer-dereference-in-drmmode_output_dpms.patch