[PATCH 4.1 18/46] drm: Fix locking for sysfs dpms file

4.1-stable review patch. If anyone has any objections, please let me know. -- From: Daniel Vetter commit 621bd0f6982badd6483acb191eb7b6226a578328 upstream. With atomic drivers we need to make sure that (at least in general) property reads hold the right locks. But the legacy

[PATCH 4.1 18/46] drm: Fix locking for sysfs dpms file

4.1-stable review patch. If anyone has any objections, please let me know. -- From: Daniel Vetter commit 621bd0f6982badd6483acb191eb7b6226a578328 upstream. With atomic drivers we need to make sure that (at least in general) property reads hold the