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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2017-06-26 10:18:35 +0200
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2017-07-03 14:07:04 +0200
commita874b6a3fb22c8c30f36b1f6ba5430a4c2278a6a (patch)
treea9dfd749078333ca3aa56d5aee2f02fdeaa94b8d /tools/perf/scripts/python/export-to-postgresql.py
parentdrm/i915: Hold RPM wakelock while initializing OA buffer (diff)
downloadlinux-dev-a874b6a3fb22c8c30f36b1f6ba5430a4c2278a6a.tar.xz
linux-dev-a874b6a3fb22c8c30f36b1f6ba5430a4c2278a6a.zip
drm/i915: Prevent kernel panic when reading/writing compliance debugfs files, v2.
When reading all debugfs files on a system with DP-MST the kernel panics on a null pointer dereference because intel_dp is null for a DP-MST connector. Detect this case and skip those connectors. Also fix the write for the DP compliance file in the same way. Changes since v1: - Fix i915_displayport_test_active_write too. (DK) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170626081835.24251-1-maarten.lankhorst@linux.intel.com
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