Radeon is the only driver acquiring the console lock on suspend and resume by itself. This creates cyclic locking dependencies with the client-list mutex.
Drop the console locking from radeon and let fbdev client handle the console locking as necessary. Adopts the behavior of all other DRM drivers. Fixes the cyclic locking. Tested by repeatedly suspeding/resuming on Radeon HD 6570. Thomas Zimmermann (2): drm/radeon: Do not hold console lock while suspending clients drm/radeon: Do not hold console lock during resume drivers/gpu/drm/radeon/radeon_device.c | 23 ++++++----------------- 1 file changed, 6 insertions(+), 17 deletions(-) -- 2.50.0
