]> git.karo-electronics.de Git - linux-beck.git/commit
drm/i915: prevent crash with .disable_display parameter
authorClint Taylor <clinton.a.taylor@intel.com>
Wed, 18 Jan 2017 21:38:43 +0000 (13:38 -0800)
committerJani Nikula <jani.nikula@intel.com>
Wed, 25 Jan 2017 10:42:16 +0000 (12:42 +0200)
commit27892bbdc9233f33bf0f44e08aab8f12e0dec142
treee12c45fb882f0d5410673656991e71d5e22efdf2
parentb78671591a10218ab18bbea120fd05df7a002e88
drm/i915: prevent crash with .disable_display parameter

The .disable_display parameter was causing a fatal crash when fbdev
was dereferenced during driver init.

V1: protection in i915_drv.c
V2: Moved protection to intel_fbdev.c

Fixes: 43cee314345a ("drm/i915/fbdev: Limit the global async-domain synchronization")
Testcase: igt/drv_module_reload/basic-no-display
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1484775523-29428-1-git-send-email-clinton.a.taylor@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
(cherry picked from commit 5b8cd0755f8a06a851c436a013e7be0823fb155a)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
drivers/gpu/drm/i915/intel_fbdev.c