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linux/include/drm
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Charles Baylis 3abab27c32 drm: Return -ENOTTY for non-drm ioctls 
drm: Return -ENOTTY for non-drm ioctls

Return -ENOTTY from drm_ioctl() when userspace passes in a cmd number
which doesn't relate to the drm subsystem.

Glibc uses the TCGETS ioctl to implement isatty(), and without this
change isatty() returns it incorrectly returns true for drm devices.

To test run this command:
$ if [ -t 0 ]; then echo is a tty; fi < /dev/dri/card0
which shows "is a tty" without this patch.

This may also modify memory which the userspace application is not
expecting.

Signed-off-by: Charles Baylis <cb-kernel@fishzet.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/YPG3IBlzaMhfPqCr@stando.fishzet.co.uk
2021-07-20 15:57:43 +02:00
..
bridge drm/bridge/synopsys: dw-hdmi: Add an option to suppress loading CEC driver 2021-04-20 17:22:38 +02:00
i2c
ttm drm/ttm: Document and optimize ttm_bo_pipeline_gutting() 2021-06-07 16:07:08 +02:00
amd_asic_type.h drm/amdgpu: add yellow carp asic_type enum 2021-06-04 16:03:05 -04:00
drm_aperture.h drm/aperture: Add infrastructure for aperture ownership 2021-05-01 12:45:03 +02:00
drm_atomic_helper.h drm: automatic legacy gamma support 2020-12-15 15:46:03 +02:00
drm_atomic_state_helper.h drm/bridge: Add a drm_bridge_state object 2020-01-31 16:00:21 +01:00
drm_atomic_uapi.h
drm_atomic.h drm: fix doc warnings in drm_atomic.h 2021-06-04 12:40:01 -04:00
drm_audio_component.h ALSA: hda/i915 - fix list corruption with concurrent probes 2020-10-09 16:46:04 +02:00
drm_auth.h
drm_blend.h
drm_bridge_connector.h drm: Add helper to create a connector for a chain of bridges 2020-02-26 13:31:41 +02:00
drm_bridge.h drm: drm_bridge.h: delete duplicated word in comment 2020-07-15 14:02:34 +02:00
drm_cache.h drm: Add a prefetching memcpy_from_wc 2021-06-07 16:07:08 +02:00
drm_client.h drm/gem: Store client buffer mappings as struct dma_buf_map 2020-11-09 09:19:45 +01:00
drm_color_mgmt.h drm: Inline drm_color_lut_extract() 2019-11-29 21:29:17 +02:00
drm_connector.h drm/connector: Add a helper to attach the colorspace property 2021-05-07 17:14:59 +02:00
drm_crtc_helper.h
drm_crtc.h drm: drm_crc: fix a kernel-doc markup 2021-01-14 15:11:46 +01:00
drm_damage_helper.h
drm_debugfs_crc.h
drm_debugfs.h drm/debugfs: remove checks for return value of drm_debugfs functions. 2020-03-18 17:32:20 +01:00
drm_device.h drm: Mark AGP implementation and ioctls as legacy 2021-05-10 15:46:58 +02:00
drm_displayid.h drm/displayid: rename displayid_hdr to displayid_header 2021-03-31 15:42:39 +03:00
drm_dp_dual_mode_helper.h drm/dp_dual_mode: Pass drm_device to drm_lspcon_(get|set)_mode() 2021-04-27 18:43:44 -04:00
drm_dp_helper.h drm/amd/display: Partition DPCD address space and break up transactions 2021-06-15 17:25:41 -04:00
drm_dp_mst_helper.h drm/dp_mst: Use kHz as link rate units when settig source max link caps at init 2021-05-27 15:30:59 -04:00
drm_drv.h drm: Fix 3 typos in the inline doc 2021-03-26 11:46:33 +01:00
drm_dsc.h - Display hotplug fix for gen2/gen3 (Chris) 2021-01-07 12:20:29 +01:00
drm_edid.h drm/displayid: add separate drm_displayid.c 2021-03-31 15:41:35 +03:00
drm_encoder_slave.h
drm_encoder.h drm/encoder: Add macro drmm_plain_encoder_alloc() 2021-03-29 16:46:43 +01:00
drm_fb_cma_helper.h drm: Add and export function drm_fb_cma_sync_non_coherent 2021-05-25 11:42:09 +01:00
drm_fb_helper.h drm/aperture: Inline fbdev conflict helpers into aperture helpers 2021-04-14 09:00:04 +02:00
drm_file.h drm/drm_vblank: set the dma-fence timestamp during send_vblank_event 2021-02-24 21:05:54 +05:30
drm_fixed.h
drm_flip_work.h
drm_format_helper.h drm/format-helper: Add blitter functions 2021-05-01 12:45:03 +02:00
drm_fourcc.h drm/fourcc: Remove struct drm_format_buf_name 2021-05-27 08:34:57 +02:00
drm_framebuffer.h drm/core: Calculate bpp in afbc helper 2020-04-01 14:11:22 +02:00
drm_gem_atomic_helper.h drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers 2021-02-23 08:54:22 +01:00
drm_gem_cma_helper.h drm: Add support for GEM buffers backed by non-coherent memory 2021-05-25 11:41:07 +01:00
drm_gem_framebuffer_helper.h drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers 2021-02-23 08:54:22 +01:00
drm_gem_shmem_helper.h drm/shmem-helper: Removed drm_gem_shmem_create_object_cached() 2020-11-24 09:10:33 +01:00
drm_gem_ttm_helper.h drm/gem-ttm-helper: Provide helper for struct drm_driver.dumb_map_offset 2021-04-11 20:14:45 +02:00
drm_gem_vram_helper.h drm/vram-helper: Use drm_gem_ttm_dumb_map_offset() 2021-04-11 20:15:06 +02:00
drm_gem.h drm: Don't export the drm_gem_dumb_destroy() function 2021-01-05 07:20:25 +02:00
drm_hashtab.h
drm_hdcp.h drm/hdcp: DP HDCP2.2 errata LC_Send_L_Prime=16 2021-03-31 14:27:43 +03:00
drm_ioctl.h drm: Return -ENOTTY for non-drm ioctls 2021-07-20 15:57:43 +02:00
drm_irq.h drm/irq: Add the new api to install irq 2020-12-03 03:57:15 -05:00
drm_lease.h
drm_legacy.h drm: Mark AGP implementation and ioctls as legacy 2021-05-10 15:46:58 +02:00
drm_managed.h drm: Remove drmm_add_final_kfree() declaration from public headers 2020-12-05 20:01:12 +01:00
drm_mipi_dbi.h drm/mipi-dbi: Switch to new kerneldoc syntax for named variable macro argument 2021-01-08 09:54:43 +01:00
drm_mipi_dsi.h drm/dsi: add helpers for DSI compression mode and PPS packets 2019-11-07 15:00:16 +02:00
drm_mm.h drm: fix spelling error in comments 2020-09-17 13:39:44 +02:00
drm_mode_config.h drm/modifiers: Enforce consistency between the cap an IN_FORMATS 2021-05-12 11:31:29 +02:00
drm_mode_object.h
drm_modes.h drm/modes: add non-OF stub for of_get_drm_display_mode 2021-01-08 19:42:14 +01:00
drm_modeset_helper_vtables.h drm/atomic: Pass the full state to planes atomic disable and update 2021-02-25 08:05:28 +01:00
drm_modeset_helper.h
drm_modeset_lock.h drm/modeset-lock: Take the modeset BKL for legacy drivers 2020-08-17 13:41:50 -04:00
drm_of.h drm: of: Fix linking when CONFIG_OF is not set 2020-01-09 10:40:58 +10:00
drm_panel.h drm/panel: Add helper for reading DT rotation 2020-08-16 17:12:18 +02:00
drm_pciids.h
drm_plane_helper.h
drm_plane.h drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers 2021-02-23 08:54:22 +01:00
drm_prime.h drm/prime: split array import functions v4 2020-11-30 15:00:45 +01:00
drm_print.h drm/print: Handle potentially NULL drm_devices in drm_dbg_* 2021-04-27 18:43:44 -04:00
drm_probe_helper.h
drm_property.h drm: Fix macro name DRM_MODE_PROP_OBJECT in code comment 2021-01-12 09:56:48 +01:00
drm_rect.h drm: Add function to convert rect in 16.16 fixed format to regular format 2021-01-05 05:32:52 -08:00
drm_scdc_helper.h drm/scdc: Fix typo in bit definition of SCDC_STATUS_FLAGS 2019-11-04 17:58:46 +01:00
drm_self_refresh_helper.h drm/atomic: fix self-refresh helpers crtc state dereference 2019-11-06 13:00:21 -05:00
drm_simple_kms_helper.h drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers 2021-02-23 08:54:22 +01:00
drm_syncobj.h
drm_sysfs.h
drm_util.h drm: Move EXPORT_SYMBOL_FOR_TESTS_ONLY under a separate Kconfig 2019-11-07 21:22:15 +00:00
drm_utils.h
drm_vblank_work.h drm/vblank: Add vblank works 2020-07-16 18:16:31 -04:00
drm_vblank.h drm/vblank: Document drm_crtc_vblank_restore constraints 2021-02-10 12:38:55 +01:00
drm_vma_manager.h
drm_writeback.h drm/writeback: wire drm_writeback.h to kernel-doc 2020-04-07 17:39:46 +02:00
gma_drm.h
gpu_scheduler.h drm/sched: Fix inverted comment for hang_limit 2021-06-03 10:32:49 +02:00
gud.h drm: Add GUD USB Display driver 2021-03-16 13:12:46 +01:00
i915_component.h
i915_drm.h
i915_mei_hdcp_interface.h drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_pciids.h drm/i915/adl_p: Add PCI Devices IDs 2021-05-07 10:51:38 +03:00
intel_lpe_audio.h
intel-gtt.h iommu/vt-d: Move intel_iommu_gfx_mapped to Intel IOMMU header 2020-09-04 12:12:45 +02:00
spsc_queue.h
task_barrier.h drm: Add Reusable task barrier. 2019-12-18 16:09:12 -05:00