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14a3842a1d
android_kernel_xiaomi_sm8450/drivers/gpu/drm
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Lyude 14a3842a1d drm/i915/fbdev: Fix num_connector references in intel_fb_initial_config() 
During boot time, MST devices usually send a ton of hotplug events
irregardless of whether or not any physical hotplugs actually occurred.
Hotplugs mean connectors being created/destroyed, and the number of DRM
connectors changing under us. This isn't a problem if we use
fb_helper->connector_count since we only set it once in the code,
however if we use num_connector from struct drm_mode_config we risk it's
value changing under us. On top of that, there's even a chance that
dev->mode_config.num_connector != fb_helper->connector_count. If the
number of connectors happens to increase under us, we'll end up using
the wrong array size for memcpy and start writing beyond the actual
length of the array, occasionally resulting in kernel panics.

Note: This is just polish for 4.7, Dave Airlie's drm_connector
refcounting fixed these bugs for real. But it's good enough duct-tape
for stable kernel backporting, since backporting the refcounting
changes is way too invasive.

Cc: stable@vger.kernel.org
Signed-off-by: Lyude <cpaul@redhat.com>
[danvet: Clarify why we need this.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1463065021-18280-2-git-send-email-cpaul@redhat.com
2016-05-17 15:42:35 +02:00
..
amd drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
arc drm/arcpgu: use dedicated memory area for frame buffer 2016-04-29 14:22:32 +03:00
arm drm/arm/hdlcd: Rename async to nonblock. 2016-05-02 16:36:09 +02:00
armada drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
ast drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
atmel-hlcdc drm: Drop crtc argument from __drm_atomic_helper_crtc_destroy_state 2016-05-17 08:56:41 +02:00
bochs drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
bridge drm/bridge: Add Analogix anx78xx support 2016-05-12 11:32:14 +02:00
cirrus drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
etnaviv drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
exynos drm/exynos/hdmi: add a missing tab 2016-05-17 09:10:22 +02:00
fsl-dcu drm/fsl-dcu: use bus_flags for pixel clock polarity 2016-05-05 10:09:06 -07:00
gma500 drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
hisilicon drm/hisilicon: Fix DRM_INFO printed issue 2016-05-11 19:05:36 +08:00
i2c
i810
i915 drm/i915/fbdev: Fix num_connector references in intel_fb_initial_config() 2016-05-17 15:42:35 +02:00
imx drm/imx: Use lockless gem BO free callback 2016-05-04 12:27:54 +02:00
mediatek drm: Drop plane argument from __drm_atomic_helper_plane_destroy_state 2016-05-17 08:56:55 +02:00
mga
mgag200 drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
msm drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
nouveau drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
omapdrm drm: Drop plane argument from __drm_atomic_helper_plane_destroy_state 2016-05-17 08:56:55 +02:00
panel drm/panel: simple: Add support for TPK U.S.A. LLC Fusion 7" and 10.1" panels 2016-05-12 11:32:14 +02:00
qxl qxl: catch qxlfb_create_pinned_object failures 2016-05-17 09:11:23 +02:00
r128
radeon drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
rcar-du drm: Drop plane argument from __drm_atomic_helper_plane_destroy_state 2016-05-17 08:56:55 +02:00
rockchip drm: Drop plane argument from __drm_atomic_helper_plane_destroy_state 2016-05-17 08:56:55 +02:00
savage
shmobile drm/shmobile: use drm_crtc_send_vblank_event() 2016-05-02 17:04:50 +02:00
sis
sti drm/sti: include linux/seq_file.h where needed 2016-05-11 09:47:05 +02:00
sun4i drm: sun4i: tv: Add NTSC output standard 2016-04-28 10:30:05 +02:00
tdfx
tegra drm: Drop plane argument from __drm_atomic_helper_plane_destroy_state 2016-05-17 08:56:55 +02:00
tilcdc drm/tilcdc: use drm_crtc_send_vblank_event() 2016-05-02 17:04:59 +02:00
ttm Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
udl drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
vc4 drm: Drop plane argument from __drm_atomic_helper_plane_destroy_state 2016-05-17 08:56:55 +02:00
vgem drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
via mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
virtio drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
vmwgfx Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
ati_pcigart.c
drm_agpsupport.c drm: Give drm_agp_clear drm_legacy_ prefix 2016-04-27 08:41:34 +02:00
drm_atomic_helper.c drm: Drop connector argument from __drm_atomic_helper_connector_destroy_state 2016-05-17 08:57:05 +02:00
drm_atomic.c drm/atomic: use connector references (v3) 2016-05-05 12:52:05 +10:00
drm_auth.c
drm_bridge.c drm: bridge: Make (pre/post) enable/disable callbacks optional 2016-03-29 08:34:05 +02:00
drm_bufs.c drm: Hide master MAP cleanup in drm_bufs.c 2016-04-27 10:14:17 +02:00
drm_cache.c
drm_context.c
drm_crtc_helper.c drm: Make drm_encoder_helper_funcs optional 2016-05-10 08:54:09 +02:00
drm_crtc_internal.h drm/mode: rework drm_mode_object_put to drm_mode_object_unregister. 2016-04-22 10:26:37 +10:00
drm_crtc.c drm/core: Do not preserve framebuffer on rmfb, v4. 2016-05-05 13:50:53 +02:00
drm_debugfs.c
drm_dma.c
drm_dp_aux_dev.c drm/dp: Allow signals to interrupt drm_aux-dev reads/writes 2016-04-28 11:48:09 +02:00
drm_dp_helper.c drm/dp_helper: Perform throw-away read before actual read in drm_dp_dpcd_read() 2016-04-22 18:52:24 +02:00
drm_dp_mst_topology.c Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
drm_drv.c drm: Protect dev->filelist with its own mutex 2016-04-27 10:16:17 +02:00
drm_edid_load.c drm/edid: convert to use match_string() helper 2016-03-17 15:09:34 -07:00
drm_edid.c Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c drm/fb-cma-helper: Add function drm_fb_cma_create_with_funcs() 2016-05-17 09:08:32 +02:00
drm_fb_helper.c drm/fb-helper: Remove mention of CONFIG_FB_DEFERRED_IO in docs 2016-05-11 18:47:51 +02:00
drm_flip_work.c
drm_fops.c drm: Protect dev->filelist with its own mutex 2016-04-27 10:16:17 +02:00
drm_gem_cma_helper.c drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
drm_gem.c drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
drm_global.c
drm_hashtab.c
drm_info.c drm: Protect dev->filelist with its own mutex 2016-04-27 10:16:17 +02:00
drm_internal.h drm: Make drm_vm_open/close_locked private to drm_vm.c 2016-04-27 10:15:56 +02:00
drm_ioc32.c
drm_ioctl.c drm: Move drm_getmap into drm_bufs.c and give it a legacy prefix 2016-04-27 08:42:48 +02:00
drm_irq.c Merge tag 'topic/drm-misc-2016-04-01' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-04-06 09:39:01 +10:00
drm_kms_helper_common.c
drm_legacy.h drm: Move drm_getmap into drm_bufs.c and give it a legacy prefix 2016-04-27 08:42:48 +02:00
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c
drm_modes.c drm/mode: rework drm_mode_object_put to drm_mode_object_unregister. 2016-04-22 10:26:37 +10:00
drm_modeset_lock.c
drm_of.c
drm_panel.c drm/panel: Flesh out kerneldoc 2016-05-06 16:04:48 +02:00
drm_pci.c drm: Give drm_agp_clear drm_legacy_ prefix 2016-04-27 08:41:34 +02:00
drm_plane_helper.c
drm_platform.c
drm_prime.c drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
drm_probe_helper.c drm: probe_helper: Hide ugly ifdef 2016-04-20 13:35:14 +02:00
drm_rect.c
drm_scatter.c
drm_sysfs.c drm/sysfs: Annote lockless show functions with READ_ONCE 2016-04-26 13:23:24 +02:00
drm_trace_points.c
drm_trace.h
drm_vm.c drm: Make drm_vm_open/close_locked private to drm_vm.c 2016-04-27 10:15:56 +02:00
drm_vma_manager.c
Kconfig drm/mediatek: Add DRM Driver for Mediatek SoC MT8173. 2016-05-06 17:47:35 +02:00
Makefile drm/mediatek: Add DRM Driver for Mediatek SoC MT8173. 2016-05-06 17:47:35 +02:00