linux_dsm_epyc7002/drivers/gpu/drm
Leo (Sunpeng) Li 54f809cfbd drm/atomic: Fix memleak on ERESTARTSYS during non-blocking commits
During a non-blocking commit, it is possible to return before the
commit_tail work is queued (-ERESTARTSYS, for example).

Since a reference on the crtc commit object is obtained for the pending
vblank event when preparing the commit, the above situation will leave
us with an extra reference.

Therefore, if the commit_tail worker has not consumed the event at the
end of a commit, release it's reference.

Changes since v1:
- Also check for state->event->base.completion being set, to
  handle the case where stall_checks() fails in setup_crtc_commit().
Changes since v2:
- Add a flag to drm_crtc_commit, to prevent dereferencing a freed event.
  i915 may unreference the state in a worker.

Fixes: 24835e442f ("drm: reference count event->completion")
Cc: <stable@vger.kernel.org> # v4.11+
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com> #v1
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180117115108.29608-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Sean Paul <seanpaul@chromium.org>
2018-02-01 11:14:06 +01:00
..
amd drm/amd/display: call set csc_default if enable adjustment is false 2018-01-02 14:53:27 -05:00
arc
arm Merge branch 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-fixes 2017-12-01 09:15:31 +10:00
armada drm/armada: fix YUV planar format framebuffer offsets 2017-12-08 12:16:22 +00:00
ast main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
atmel-hlcdc main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
bochs main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
bridge drm/bridge: analogix dp: Fix runtime PM state in get_modes() callback 2017-12-07 20:12:39 +05:30
cirrus drm/cirrus: Load lut in crtc_commit 2018-01-31 13:14:33 +01:00
etnaviv main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
exynos drm/exynos: remove unnecessary function declaration 2017-12-07 10:34:40 +09:00
fsl-dcu fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
gma500 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
hisilicon drm/hisilicon: Ensure LDI regs are properly configured. 2017-11-01 10:36:50 +08:00
i2c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
i810
i915 drm/i915: Don't adjust priority on an already signaled fence 2018-01-11 11:42:53 +02:00
imx drm/imx: always call wait_for_flip_done in commit_tail 2017-11-30 15:47:40 +01:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mediatek main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
meson drm/meson: Use drm_gem_fb_create() 2017-10-01 17:01:39 +02:00
mga
mgag200 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
msm treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
mxsfb drm/mxsfb: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() 2017-10-01 17:02:20 +02:00
nouveau Merge branch 'linux-4.15' of git://github.com/skeggsb/linux into drm-fixes 2018-01-09 12:03:10 +10:00
omapdrm omapdrm/dss/hdmi4_cec: fix interrupt handling 2018-01-02 14:20:10 +02:00
panel main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
pl111 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
qxl qxl: alloc & use shadow for dumb buffers 2017-10-23 08:23:11 +02:00
r128 r128: switch compat ioctls to drm_ioctl_kernel() 2017-09-29 13:42:35 -04:00
radeon drm/radeon: remove init of CIK VMIDs 8-16 for amdkfd 2017-11-29 14:43:20 -05:00
rcar-du main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
rockchip Linux 4.15-rc1 2017-11-27 10:54:33 +01:00
savage
selftests License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
shmobile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
sis
sti main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
stm drm/stm: ltdc: remove bridge from driver internal structure 2017-10-10 11:32:48 +02:00
sun4i drm/sun4i: hdmi: Add missing rate halving check in sun4i_tmds_determine_rate 2018-01-11 13:25:43 +01:00
tdfx
tegra drm/tegra: sor: Fix hang on Tegra124 eDP 2018-01-10 13:04:58 +01:00
tilcdc fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
tinydrm drm/tinydrm: Remove explicit .best_encoder assignment 2017-10-13 17:34:51 +02:00
ttm drm/ttm: check the return value of kzalloc 2018-01-02 14:54:05 -05:00
tve200 drm/tve200: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() 2017-10-01 17:04:36 +02:00
udl Merge tag 'drm-misc-next-2017-10-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-10-24 16:51:05 +10:00
vc4 drm/vc4: Fix NULL pointer dereference in vc4_save_hang_state() 2018-01-18 12:17:03 -08:00
vgem treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
via treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
virtio main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
vmwgfx drm/vmwgfx: fix memory corruption with legacy/sou connectors 2018-01-17 16:27:45 +01:00
zte main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
ati_pcigart.c
drm_agpsupport.c drm/agpsupport: Remove extra blank line 2017-09-20 09:54:19 -07:00
drm_atomic_helper.c drm/atomic: Fix memleak on ERESTARTSYS during non-blocking commits 2018-02-01 11:14:06 +01:00
drm_atomic.c drm: Reorganize drm_pending_event to support future event types [v2] 2017-10-21 07:23:40 +10:00
drm_auth.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_blend.c
drm_bridge.c
drm_bufs.c
drm_cache.c
drm_color_mgmt.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_connector.c drm: rework delayed connector cleanup in connector_iter 2017-12-13 22:59:00 +01:00
drm_context.c
drm_crtc_helper_internal.h
drm_crtc_helper.c drm: Replace kzalloc with kcalloc 2017-10-13 15:49:03 -04:00
drm_crtc_internal.h drm: rework delayed connector cleanup in connector_iter 2017-12-13 22:59:00 +01:00
drm_crtc.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_debugfs_crc.c
drm_debugfs.c
drm_dma.c
drm_dp_aux_dev.c Pass mode to wait_on_atomic_t() action funcs and provide default actions 2017-11-13 15:38:16 +00:00
drm_dp_dual_mode_helper.c drm: Add retries for lspcon mode detection 2017-10-13 12:13:54 +03:00
drm_dp_helper.c drm/dp: WARN about invalid/unknown link rates and bw codes 2017-10-11 18:41:44 +03:00
drm_dp_mst_topology.c
drm_drv.c drm: Add new LEASE debug level 2017-10-25 16:31:29 +10:00
drm_dumb_buffers.c
drm_edid_load.c drm: add backwards compatibility support for drm_kms_helper.edid_firmware 2017-09-19 18:11:45 +03:00
drm_edid.c drm: Update edid-derived drm_display_info fields at edid property set [v2] 2017-12-13 14:51:37 +01:00
drm_encoder_slave.c
drm_encoder.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_fb_cma_helper.c drm/fb-cma-helper: Remove unused functions 2017-10-01 17:05:39 +02:00
drm_fb_helper.c drm/fb_helper: Disable all crtc's when initial setup fails. 2017-11-29 15:37:31 +01:00
drm_file.c
drm_flip_work.c
drm_fourcc.c
drm_framebuffer.c drm/mode_object: fix documentation for object lookups. 2017-11-10 13:50:47 +10:00
drm_gem_cma_helper.c drm/gem-cma-helper: Change the level of the allocation failure message 2017-10-16 15:19:57 +02:00
drm_gem_framebuffer_helper.c drm/gem-fb-helper: Improve documentation 2017-10-08 15:02:51 +02:00
drm_gem.c drm: fix typo in drm_gem_get_pages() comment 2017-10-04 18:04:28 +02:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h drm: Add CRTC_GET_SEQUENCE and CRTC_QUEUE_SEQUENCE ioctls [v3] 2017-10-23 11:15:03 +10:00
drm_ioc32.c
drm_ioctl.c drm: Add four ioctls for managing drm mode object leases [v7] 2017-10-25 16:31:30 +10:00
drm_irq.c
drm_kms_helper_common.c drm: add backwards compatibility support for drm_kms_helper.edid_firmware 2017-09-19 18:11:45 +03:00
drm_lease.c drm: move lease init after validation in drm_lease_create 2017-12-21 09:49:40 +01:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c lib/rbtree,drm/mm: add rbtree_replace_node_cached() 2017-12-14 16:00:48 -08:00
drm_mode_config.c drm: rework delayed connector cleanup in connector_iter 2017-12-13 22:59:00 +01:00
drm_mode_object.c drm/mode_object: fix documentation for object lookups. 2017-11-10 13:50:47 +10:00
drm_modes.c
drm_modeset_helper.c
drm_modeset_lock.c drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all 2017-10-31 17:36:46 +01:00
drm_of.c drm/drm_of: Move drm_of_panel_bridge_remove_function into header. 2017-10-13 16:59:36 +02:00
drm_panel.c
drm_pci.c drm/core: clean up references to drm_dev_unref() 2017-09-27 10:53:12 +02:00
drm_plane_helper.c drm: Replace kzalloc with kcalloc 2017-10-13 15:49:03 -04:00
drm_plane.c drm/plane: Make framebuffer refcounting the responsibility of setplane_internal callers 2017-12-20 14:49:06 +01:00
drm_prime.c drm/core: clean up references to drm_dev_unref() 2017-09-27 10:53:12 +02:00
drm_print.c
drm_probe_helper.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_property.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_rect.c
drm_scatter.c
drm_scdc_helper.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_simple_kms_helper.c
drm_syncobj.c drm/syncobj: Stop reusing the same struct file for all syncobj -> fd 2017-12-22 14:14:39 +10:00
drm_sysfs.c
drm_trace_points.c
drm_trace.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
drm_vblank.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
drm_vm.c
drm_vma_manager.c
Kconfig Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-09-28 08:37:02 +10:00
Makefile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00