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e5dd3e61baed74d0abfc63d05d69dbff9e48d1bd
linux/drivers/gpu/drm
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AngeloGioacchino Del Regno 71d07ebc50 drm/mediatek: hdmi: Perform NULL pointer check for mtk_hdmi_conf 
[ Upstream commit 3b8e19a0aa ]

In commit 41ca9caaae
("drm/mediatek: hdmi: Add check for CEA modes only") a check
for CEA modes was added to function mtk_hdmi_bridge_mode_valid()
in order to address possible issues on MT8167;
moreover, with commit c91026a938
("drm/mediatek: hdmi: Add optional limit on maximal HDMI mode clock")
another similar check was introduced.

Unfortunately though, at the time of writing, MT8173 does not provide
any mtk_hdmi_conf structure and this is crashing the kernel with NULL
pointer upon entering mtk_hdmi_bridge_mode_valid(), which happens as
soon as a HDMI cable gets plugged in.

To fix this regression, add a NULL pointer check for hdmi->conf in the
said function, restoring HDMI functionality and avoiding NULL pointer
kernel panics.

Fixes: 41ca9caaae ("drm/mediatek: hdmi: Add check for CEA modes only")
Fixes: c91026a938 ("drm/mediatek: hdmi: Add optional limit on maximal HDMI mode clock")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-12-29 12:28:39 +01:00
..
amd
drm/amd/pm: fix reading SMU FW version from amdgpu_firmware_info on YC
2021-12-22 09:32:49 +01:00
arm
drm/arm/hdlcd: Convert to Linux IRQ interfaces
2021-08-10 20:00:51 +02:00
armada
drm/aperture: Pass DRM driver structure instead of driver name
2021-07-01 11:11:55 +02:00
aspeed
drm/aspeed: Fix vga_pw sysfs output
2021-12-01 09:04:47 +01:00
ast
drm/ast: potential dereference of null pointer
2021-12-22 09:32:41 +01:00
atmel-hlcdc
drm/atmel-hlcdc: Convert to Linux IRQ interfaces
2021-08-10 20:00:58 +02:00
bridge
drm/bridge: nwl-dsi: Add atomic_get_input_bus_fmts
2021-11-18 19:17:01 +01:00
etnaviv
drm/etnaviv: add missing MMU context put when reaping MMU mapping
2021-09-16 10:35:37 +02:00
exynos
drm/exynos: Make use of the helper function devm_platform_ioremap_resource()
2021-09-16 14:05:07 +09:00
fsl-dcu
drm/fsl-dcu: Convert to Linux IRQ interfaces
2021-08-10 20:13:25 +02:00
gma500
drm/gma500: Convert to Linux IRQ interfaces
2021-08-10 20:13:32 +02:00
gud
drm/gud: Get offset-adjusted mapping from drm_gem_fb_vmap()
2021-08-08 20:27:24 +02:00
hisilicon
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
hyperv
drm/hyperv: Fix device removal on Gen1 VMs
2021-12-01 09:04:51 +01:00
i2c
…
i810
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
i915
drm/i915/display: Fix an unsigned subtraction which can never be negative.
2021-12-22 09:32:42 +01:00
imx
Revert "drm/imx: Annotate dma-fence critical section in commit path"
2021-11-18 19:17:09 +01:00
ingenic
drm/ingenic: Use standard drm_atomic_helper_commit_tail
2021-08-11 15:49:15 +02:00
kmb
drm/kmb: Enable ADV bridge after modeset
2021-10-21 11:08:09 +02:00
lib
…
lima
Merge tag 'drm-misc-next-2021-07-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-21 11:58:28 +10:00
mcde
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
mediatek
drm/mediatek: hdmi: Perform NULL pointer check for mtk_hdmi_conf
2021-12-29 12:28:39 +01:00
meson
Merge tag 'drm-next-2021-08-31-1' of git://anongit.freedesktop.org/drm/drm
2021-09-01 11:26:46 -07:00
mga
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
mgag200
drm/mgag200: Fix uninitialized variable delta
2021-08-18 20:47:59 +02:00
msm
drm/msm/dp: Avoid unpowered AUX xfers that caused crashes
2021-12-17 10:30:14 +01:00
mxsfb
drm: mxsfb: Fix NULL pointer dereference crash on unload
2021-10-21 11:08:08 +02:00
nouveau
drm/nouveau/acr: fix a couple NULL vs IS_ERR() checks
2021-12-01 09:04:47 +01:00
omapdrm
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
panel
drm/panel: ilitek-ili9881c: Fix sync for Feixin K101-IM2BYL02 panel
2021-10-21 11:08:08 +02:00
panfrost
drm/panfrost: Clamp lock region to Bifrost minimum
2021-08-25 15:40:19 +01:00
pl111
drm/pl111: Remove unused including <linux/version.h>
2021-07-31 20:52:01 +02:00
qxl
Merge tag 'drm-misc-next-2021-07-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-21 11:58:28 +10:00
r128
drm/r128: fix build for UML
2021-10-15 15:05:10 +10:00
radeon
drm/ttm: remove ttm_bo_vm_insert_huge()
2021-11-18 19:17:08 +01:00
rcar-du
drm: rcar-du: Don't create encoder for unconnected LVDS outputs
2021-10-13 07:44:04 +10:00
rockchip
drm/rockchip: Update crtc fixup to account for fractional clk change
2021-10-06 11:05:45 +02:00
savage
drm/savage: Remove references to struct drm_device.pdev
2021-05-03 19:48:30 +02:00
scheduler
drm/sched: Allow using a dedicated workqueue for the timeout/fault tdr
2021-07-01 08:53:25 +02:00
selftests
drm/i915/selftests: Properly reset mock object propers for each test
2021-10-22 11:09:45 +02:00
shmobile
drm/shmobile: Convert to Linux IRQ interfaces
2021-07-25 11:01:12 +02:00
sis
drm/sis: Remove references to struct drm_device.pdev
2021-05-03 19:48:33 +02:00
sti
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
stm
drm/stm: dsi: compute the transition time from LP to HS and back
2021-07-19 15:35:55 +02:00
sun4i
drm/sun4i: fix unmet dependency on RESET_CONTROLLER for PHY_SUN6I_MIPI_DPHY
2021-12-08 09:04:37 +01:00
tdfx
…
tegra
drm/tegra: uapi: Fix wrong mapping end address in case of disabled IOMMU
2021-09-16 18:06:51 +02:00
tidss
drm/tidss: Convert to Linux IRQ interfaces
2021-08-10 20:13:49 +02:00
tilcdc
drm/tilcdc: Convert to Linux IRQ interfaces
2021-08-10 20:13:53 +02:00
tiny
drm: simpledrm: fix wrong unit with pixel clock
2021-12-22 09:32:41 +01:00
ttm
drm/ttm: remove ttm_bo_vm_insert_huge()
2021-11-18 19:17:08 +01:00
tve200
drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default
2021-06-24 15:40:11 +02:00
udl
drm/udl: fix control-message timeout
2021-11-25 09:49:05 +01:00
v3d
drm/v3d: fix wait for TMU write combiner flush
2021-11-18 19:16:23 +01:00
vboxvideo
drm/vbox: Use offset-adjusted shadow-plane mappings
2021-08-08 20:27:49 +02:00
vc4
drm/vc4: kms: Fix previous HVS commit wait
2021-12-08 09:04:50 +01:00
vgem
Revert "drm/vgem: Implement mmap as GEM object function"
2021-07-13 13:15:52 +02:00
via
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
virtio
virtio-gpu: fix possible memory allocation failure
2021-11-18 19:16:23 +01:00
vkms
drm/vkms: Use offset-adjusted shadow-plane mappings and output
2021-08-08 20:27:52 +02:00
vmwgfx
drm/ttm: remove ttm_bo_vm_insert_huge()
2021-11-18 19:17:08 +01:00
xen
drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default
2021-06-24 15:40:11 +02:00
xlnx
drm/xlnx/zynqmp_disp: Fix incorrectly named enum 'zynqmp_disp_layer_id'
2021-08-09 02:28:05 +03:00
zte
drm/zte: Don't set struct drm_device.irq_enabled
2021-06-29 15:40:53 +02:00
drm_agpsupport.c
drm: Include <asm/agp.h> iff CONFIG_AGP is set
2021-05-11 14:13:33 +02:00
drm_aperture.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_atomic_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_atomic_state_helper.c
…
drm_atomic_uapi.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_atomic.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_auth.c
drm: add lockdep assert to drm_is_current_master_locked
2021-08-05 12:08:15 +02:00
drm_blend.c
drm: drm_blend.c: Use tabs for code indents
2021-04-22 10:46:35 +02:00
drm_bridge_connector.c
…
drm_bridge.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_bufs.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_cache.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_client_modeset.c
…
drm_client.c
…
drm_color_mgmt.c
…
drm_connector.c
drm: avoid circular locks in drm_mode_getconnector
2021-07-20 20:13:56 +02:00
drm_context.c
drm: correct function name drm_legacy_ctxbitmap_flush()
2021-05-16 22:01:14 +02:00
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
…
drm_crtc_internal.h
Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next
2021-07-27 12:48:17 +02:00
drm_crtc.c
…
drm_damage_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_debugfs_crc.c
drm/doc: document how userspace should find out CRTC index
2021-06-10 19:14:47 +02:00
drm_debugfs.c
drm: avoid blocking in drm_clients_info's rcu section
2021-07-20 20:14:42 +02:00
drm_displayid.c
drm/displayid: rename displayid_hdr to displayid_header
2021-03-31 15:42:39 +03:00
drm_dma.c
drm: remove usage of drm_pci_alloc/free
2021-04-26 18:19:15 +02:00
drm_dp_aux_bus.c
Merge tag 'bus_remove_return_void-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into drm-next
2021-08-11 08:47:08 +10:00
drm_dp_aux_dev.c
drm/dp: Add backpointer to drm_device in drm_dp_aux
2021-04-27 18:43:42 -04:00
drm_dp_cec.c
…
drm_dp_dual_mode_helper.c
drm/dp_dual_mode: Convert drm_dp_dual_mode_helper.c to using drm_err/drm_dbg_kms()
2021-04-27 18:43:45 -04:00
drm_dp_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_dp_mst_topology_internal.h
…
drm_dp_mst_topology.c
drm/dp_mst: Fix return code on sideband message failure
2021-07-27 18:58:28 -04:00
drm_drv.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_dsc.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_dumb_buffers.c
…
drm_edid_load.c
…
drm_edid.c
drm/edid: In connector_bad_edid() cap num_of_ext by num_blocks read
2021-10-15 15:03:57 +10:00
drm_encoder_slave.c
…
drm_encoder.c
…
drm_fb_cma_helper.c
drm: Add and export function drm_fb_cma_sync_non_coherent
2021-05-25 11:42:09 +01:00
drm_fb_helper.c
Revert "drm/fb-helper: improve DRM fbdev emulation device names"
2021-12-22 09:32:39 +01:00
drm_file.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_flip_work.c
…
drm_format_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_fourcc.c
Merge tag 'amd-drm-next-5.14-2021-06-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
2021-06-04 06:13:57 +10:00
drm_framebuffer.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_gem_atomic_helper.c
drm/gem: Provide offset-adjusted framebuffer BO mappings
2021-08-08 20:26:16 +02:00
drm_gem_cma_helper.c
drm/cma-helper: Release non-coherent memory with dma_free_noncoherent()
2021-11-25 09:48:45 +01:00
drm_gem_framebuffer_helper.c
drm/gem: Provide offset-adjusted framebuffer BO mappings
2021-08-08 20:26:16 +02:00
drm_gem_shmem_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_gem_ttm_helper.c
drm/ttm: rename bo->mem and make it a pointer
2021-06-02 11:07:25 +02:00
drm_gem_vram_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_gem.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_hashtab.c
…
drm_hdcp.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_internal.h
drm: Mark IRQ_BUSID ioctl as legacy
2021-05-17 21:19:48 +02:00
drm_ioc32.c
drm: Copy drm_wait_vblank to user before returning
2021-08-17 13:56:03 -04:00
drm_ioctl.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_irq.c
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
drm_kms_helper_common.c
…
drm_lease.c
drm: clean up unused kerneldoc in drm_lease.c
2021-07-30 11:55:41 +02:00
drm_legacy_misc.c
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
drm_legacy.h
drm: Mark IRQ_BUSID ioctl as legacy
2021-05-17 21:19:48 +02:00
drm_lock.c
…
drm_managed.c
…
drm_memory.c
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
drm_mipi_dbi.c
drm/mipi-dbi: Use framebuffer dma-buf helpers
2021-07-23 20:17:59 +02:00
drm_mipi_dsi.c
…
drm_mm.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_mode_config.c
…
drm_mode_object.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_modes.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_modeset_helper.c
…
drm_modeset_lock.c
…
drm_of.c
drm/of: free the iterator object on failure
2021-07-15 10:54:04 +01:00
drm_panel_orientation_quirks.c
drm/panel-orientation-quirks: add Valve Steam Deck
2021-11-18 19:16:09 +01:00
drm_panel.c
drm/dp: Move panel DP AUX backlight support to drm_dp_helper
2021-07-13 06:38:37 -07:00
drm_pci.c
drm: Mark IRQ_BUSID ioctl as legacy
2021-05-17 21:19:48 +02:00
drm_plane_helper.c
drm/plane-helper: fix uninitialized variable reference
2021-11-18 19:17:00 +01:00
drm_plane.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_prime.c
drm/prime: Fix use after free in mmap with drm_gem_ttm_mmap
2021-11-25 09:49:05 +01:00
drm_print.c
isystem: ship and use stdarg.h
2021-08-19 09:02:55 +09:00
drm_probe_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_property.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_rect.c
…
drm_scatter.c
…
drm_scdc_helper.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_self_refresh_helper.c
…
drm_simple_kms_helper.c
drm/simple-kms: Support custom CRTC state
2021-08-08 20:14:08 +02:00
drm_syncobj.c
drm/syncobj: Deal with signalled fences in drm_syncobj_find_fence.
2021-12-14 10:57:14 +01:00
drm_sysfs.c
…
drm_trace_points.c
…
drm_trace.h
…
drm_vblank_work.c
…
drm_vblank.c
drm: IRQ midlayer is now legacy
2021-08-10 20:14:01 +02:00
drm_vm.c
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
drm_vma_manager.c
drm: Fix typo in comments
2021-08-02 10:19:43 +02:00
drm_writeback.c
…
Kconfig
Revert "drm: fb_helper: fix CONFIG_FB dependency"
2021-11-21 13:44:12 +01:00
Makefile
drm/bochs: Move to tiny/
2021-07-05 08:54:44 +02:00