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0fa375e6bc
linux-next/drivers/gpu/drm
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Jeffy Chen 0fa375e6bc drm/rockchip: Fix suspend crash when drm is not bound 
Currently we are allocating drm_device in rockchip_drm_bind, so if the
suspend/resume code access it when drm is not bound, we would hit this
crash:

[  253.402836] Unable to handle kernel NULL pointer dereference at virtual address 00000028
[  253.402837] pgd = ffffffc06c9b0000
[  253.402841] [00000028] *pgd=0000000000000000, *pud=0000000000000000
[  253.402844] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[  253.402859] Modules linked in: btusb btrtl btbcm btintel bluetooth ath10k_pci ath10k_core ar10k_ath ar10k_mac80211 cfg80211 ip6table_filter asix usbnet mii
[  253.402864] CPU: 4 PID: 1331 Comm: cat Not tainted 4.4.70 #15
[  253.402865] Hardware name: Google Scarlet (DT)
[  253.402867] task: ffffffc076c0ce00 ti: ffffffc06c2c8000 task.ti: ffffffc06c2c8000
[  253.402871] PC is at rockchip_drm_sys_suspend+0x20/0x5c

Add sanity checks to prevent that.

Reported-by: Brian Norris <briannorris@chromium.com>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.kernel.org/patch/9890297/
2017-08-09 13:59:25 -04:00
..
amd Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
arc drm/arcgpu: Drop drm_vblank_cleanup 2017-05-31 10:57:08 +02:00
arm drm/arm: hdlcd: remove unused variables 2017-06-21 10:51:26 +01:00
armada drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI 2017-05-22 09:49:48 +02:00
ast drm/ast: fix include notation and remove -Iinclude/drm flag 2017-05-16 17:17:51 +02:00
atmel-hlcdc Merge tag 'drm-misc-next-2017-06-15' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-06-16 09:33:43 +10:00
bochs drm/bochs: fix include notation and remove -Iinclude/drm flag 2017-05-16 17:18:23 +02:00
bridge drm/bridge: tc358767: fix probe without attached output node 2017-07-28 09:28:28 +05:30
cirrus drm/cirrus: fix include notation and remove -Iinclude/drm flag 2017-05-16 17:18:56 +02:00
etnaviv Linux 4.12-rc3 2017-05-30 15:54:15 +10:00
exynos Summary: 2017-06-06 16:54:27 +10:00
fsl-dcu drm/fsl-dcu: use new drm_atomic_helper_shutdown 2017-06-08 14:59:14 -07:00
gma500 Linux 4.12-rc3 2017-05-30 15:54:15 +10:00
hisilicon Linux 4.12-rc5 2017-06-16 13:58:27 +10:00
i2c drm/i2c: remove unneeded -Iinclude/drm compiler flag 2017-05-18 07:13:04 +02:00
i810 drm/i810: remove unneeded -Iinclude/drm compiler flag 2017-05-18 07:12:57 +02:00
i915 drm/i915: remove rate_to_index, messed up merge. 2017-06-21 08:56:54 +10:00
imx Linux 4.12-rc5 2017-06-16 13:58:27 +10:00
lib
mediatek Linux 4.12-rc5 2017-06-16 13:58:27 +10:00
meson Linux 4.12-rc5 2017-06-16 13:58:27 +10:00
mga drm/mga: remove unneeded -Iinclude/drm compiler flag 2017-05-18 07:13:11 +02:00
mgag200 Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
msm drm/msm: Fix potential buffer overflow issue 2017-06-19 19:58:57 -04:00
mxsfb drm: mxsfb_crtc: Reset the eLCDIF controller 2017-06-15 14:26:24 -04:00
nouveau drm/nouveau/disp/nv50-: avoid creating ORs that aren't present on HW 2017-06-17 11:23:44 +10:00
omapdrm drm/omap: fix tiled buffer stride calculations 2017-06-02 11:09:34 +03:00
panel drm/panel: s6e3ha2: Add support for s6e3hf2 panel on TM2e board 2017-06-14 20:18:22 +02:00
pl111 drm/pl111: Fix offset calculation for the primary plane. 2017-06-07 11:50:00 -07:00
qxl Linux 4.12-rc3 2017-05-30 15:54:15 +10:00
r128 drm/r128: remove unneeded -Iinclude/drm compiler flag 2017-05-18 07:13:23 +02:00
radeon Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
rcar-du drm: rcar-du: Map memory through the VSP device 2017-06-09 12:25:38 +01:00
rockchip drm/rockchip: Fix suspend crash when drm is not bound 2017-08-09 13:59:25 -04:00
savage drm/savage: remove unneeded -Iinclude/drm compiler flag 2017-05-18 07:13:34 +02:00
selftests drm/mm: Split up long running selftests with cond_resched() 2017-05-04 08:11:46 +02:00
shmobile drm: Add acquire ctx parameter to ->page_flip(_target) 2017-03-29 09:50:38 +02:00
sis drm/sis: remove unneeded -Iinclude/drm compiler flag 2017-05-18 07:13:40 +02:00
sti Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next 2017-05-18 09:24:30 -04:00
stm drm/stm: Drop drm_vblank_cleanup 2017-05-31 10:48:58 +02:00
sun4i sun4i-drm changes for 4.13 2017-06-16 10:02:35 +10:00
tdfx drm/tdfx: remove unneeded -Iinclude/drm compiler flag 2017-05-18 07:13:47 +02:00
tegra Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
tilcdc drm/tilcdc: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:49 +02:00
tinydrm drm: Use vsnprintf extension %ph 2017-05-31 10:30:38 +02:00
ttm drm: drop drm_[cm]alloc* helpers 2017-05-18 17:22:39 +02:00
udl drm: drop drm_[cm]alloc* helpers 2017-05-18 17:22:39 +02:00
vc4 drm/vc4: Fix VBLANK handling in crtc->enable() path 2017-07-14 13:19:48 -07:00
vgem drm/vgem: Fix return value check in vgem_init() 2017-05-22 09:47:34 +02:00
via drm/via: remove unneeded -Iinclude/drm compiler flag 2017-05-18 07:14:05 +02:00
virtio drm: Remove drm_device->virtdev 2017-05-29 20:57:25 +02:00
vmwgfx Linux 4.12-rc5 2017-06-16 13:58:27 +10:00
zte drm: zte: use devm_of_platform_populate() 2017-06-05 09:57:14 +08:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c Linux 4.12-rc5 2017-06-16 13:58:27 +10:00
drm_atomic.c drm: Reduce scope of 'state' variable 2017-06-15 14:26:02 -04:00
drm_auth.c
drm_blend.c drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI 2017-05-22 09:49:48 +02:00
drm_bridge.c drm: Introduce drm_bridge_mode_valid() 2017-05-30 08:37:50 +02:00
drm_bufs.c
drm_cache.c gpu: drm: core: Convert printk(KERN_<LEVEL> to pr_<level> 2017-02-28 14:32:19 +01:00
drm_color_mgmt.c drm/doc: Interlink color manager docs better 2017-04-18 08:56:29 +02:00
drm_connector.c Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
drm_context.c
drm_crtc_helper_internal.h drm: Add drm_{crtc/encoder/connector}_mode_valid() 2017-05-30 08:37:24 +02:00
drm_crtc_helper.c drm: Add acquire ctx parameter to ->set_config 2017-03-29 09:56:25 +02:00
drm_crtc_internal.h drm: extract legacy framebuffer remove 2017-04-06 10:22:43 +02:00
drm_crtc.c drm: Take mode_config.mutex in setcrtc ioctl 2017-04-06 22:49:50 +02:00
drm_debugfs_crc.c Revert "drm: Don't allow interruptions when opening debugfs/crc" 2017-04-07 16:18:28 -04:00
drm_debugfs.c drm/debugfs: Add kerneldoc 2017-03-24 09:36:06 +01:00
drm_dma.c
drm_dp_aux_dev.c
drm_dp_dual_mode_helper.c drm: Add name for DRM_DP_DUAL_MODE_LSPCON 2017-02-23 11:06:12 -05:00
drm_dp_helper.c drm/dp: Don't trust drm_dp_downstream_id() 2017-07-21 17:45:26 +03:00
drm_dp_mst_topology.c drm/mst: Avoid processing partially received up/down message transactions 2017-07-20 10:20:31 +02:00
drm_drv.c drm: Fix oops + Xserver hang when unplugging USB drm devices 2017-06-02 11:09:35 -04:00
drm_dumb_buffers.c
drm_edid_load.c drm: move edid property update and add modes out of edid firmware loader 2017-02-21 15:41:24 +02:00
drm_edid.c drm/edid: Add 10 bpc quirk for LGD 764 panel in HP zBook 17 G2 2017-05-02 10:37:45 +02:00
drm_encoder_slave.c
drm_encoder.c drm: Rename connector list iterator API 2017-02-28 16:16:48 +01:00
drm_fb_cma_helper.c drm/cma-helper: Return ENOENT for "no such gem obj" 2017-04-18 17:57:37 +02:00
drm_fb_helper.c drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI 2017-05-22 09:49:48 +02:00
drm_file.c drm: introduce sync objects (v4) 2017-06-14 12:10:22 +10:00
drm_flip_work.c
drm_fourcc.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux into drm-misc-next 2017-03-23 08:15:55 +01:00
drm_framebuffer.c drm/atomic: Add missing drm_atomic_state_clear to atomic_remove_fb 2017-07-03 10:31:37 +02:00
drm_gem_cma_helper.c Pointer for Markus's image conversion work. 2017-03-14 15:07:33 +01:00
drm_gem.c drm: drop drm_[cm]alloc* helpers 2017-05-18 17:22:39 +02:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h drm: introduce sync objects (v4) 2017-06-14 12:10:22 +10:00
drm_ioc32.c drm: document drm_ioctl.[hc] 2017-04-04 20:47:54 +02:00
drm_ioctl.c drm: introduce sync objects (v4) 2017-06-14 12:10:22 +10:00
drm_irq.c drm/doc: Polish irq helper documentation 2017-06-01 08:02:14 +02:00
drm_kms_helper_common.c drm: Remove drmP.h include from drm_kms_helper_common.c 2017-03-09 16:18:02 +01:00
drm_legacy.h
drm_lock.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
drm_memory.c
drm_mipi_dsi.c
drm_mm.c drm: Micro-optimise drm_mm_for_each_node_in_range() 2017-02-06 16:57:37 +01:00
drm_mode_config.c drm: Rename connector list iterator API 2017-02-28 16:16:48 +01:00
drm_mode_object.c Pointer for Markus's image conversion work. 2017-03-14 15:07:33 +01:00
drm_modes.c drm: Rename drm_mode_object_get() 2017-02-28 16:14:53 +01:00
drm_modeset_helper.c drm: Add mode_config .get_format_info() hook 2017-03-22 19:45:00 +02:00
drm_modeset_lock.c drm: Remove drm_modeset_legacy_acquire_ctx and crtc->acquire_ctx 2017-04-05 09:26:45 +02:00
drm_of.c drm: of: introduce drm_of_find_panel_or_bridge 2017-04-06 17:00:27 -04:00
drm_panel.c
drm_pci.c drm: Extract drm_pci.h 2017-03-09 16:18:02 +01:00
drm_plane_helper.c drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI 2017-05-22 09:49:48 +02:00
drm_plane.c drm: Fix deadlock retry loop in page_flip_ioctl 2017-05-23 09:39:14 +02:00
drm_prime.c drm/prime: Introduce drm_gem_prime_import_dev 2017-05-08 09:39:13 +02:00
drm_print.c drm: drm_printer: add __printf validation 2017-02-26 21:43:08 +01:00
drm_probe_helper.c drm: Use new mode_valid() helpers in connector probe helper 2017-05-30 08:37:50 +02:00
drm_property.c drm: Fix get_property logic fumble 2017-04-12 18:11:32 +02:00
drm_rect.c drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI 2017-05-22 09:49:48 +02:00
drm_scatter.c
drm_scdc_helper.c drm/edid: detect SCDC support in HF-VSDB 2017-03-21 10:15:56 +02:00
drm_simple_kms_helper.c drm: Clarify the role of plane_state argument to drm_simple update(). 2017-03-30 12:02:00 -07:00
drm_syncobj.c drm/syncobj: add sync_file interaction. (v1.2) 2017-06-14 12:11:04 +10:00
drm_sysfs.c drm: Consolidate and document sysfs support 2017-04-04 20:47:54 +02:00
drm_trace_points.c
drm_trace.h drm: Remove drm_pending_event->pid 2017-03-14 14:38:33 +01:00
drm_vblank.c drm: vblank: Fix vblank timestamp update 2017-06-29 14:40:47 +02:00
drm_vm.c drm: remove unnecessary fault wrappers 2017-02-24 17:46:55 -08:00
drm_vma_manager.c drm: Improve drm_mm search (and fix topdown allocation) with rbtrees 2017-02-03 11:10:32 +01:00
Kconfig drm/pl111: Initial drm/kms driver for pl111 2017-05-08 12:24:06 -07:00
Makefile Merge tag 'drm-misc-next-2017-06-15' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-06-16 09:33:43 +10:00