John Keeping f135046e51 drm/rockchip: cancel pending vblanks on close ... When closing the DRM device while a vblank is pending, we access file_priv after it has been free'd, which gives: Unable to handle kernel NULL pointer dereference at virtual address 00000000 ... PC is at __list_add+0x5c/0xe8 LR is at send_vblank_event+0x54/0x1f0 ... [<c02952e8>] (__list_add) from [<c031a7b4>] (send_vblank_event+0x54/0x1f0) [<c031a760>] (send_vblank_event) from [<c031a9c0>] (drm_send_vblank_event+0x70/0x78) [<c031a950>] (drm_send_vblank_event) from [<c031a9f8>] (drm_crtc_send_vblank_event+0x30/0x34) [<c031a9c8>] (drm_crtc_send_vblank_event) from [<c0339ad8>] (vop_isr+0x224/0x28c) [<c03398b4>] (vop_isr) from [<c0081780>] (handle_irq_event_percpu+0x12c/0x3e4) This can be triggered somewhat reliably with: modetest -M rockchip -v -s ... Add a preclose hook to the driver so that we can discard any pending vblank events when the device is closed. Signed-off-by: John Keeping <john@metanate.com>		2016-03-28 14:48:29 +08:00
..
drm	drm/rockchip: cancel pending vblanks on close	2016-03-28 14:48:29 +08:00
host1x	drm/tegra: Changes for v4.6-rc1	2016-03-17 08:08:57 +10:00
ipu-v3	Merge drm-fixes into drm-next.	2016-03-14 09:46:02 +10:00
vga	vga_switcheroo: Add support for switching only the DDC	2016-02-09 11:21:07 +01:00
Makefile