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linux/drivers/gpu/drm/i915
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Ander Conselvan de Oliveira 1e5a15d65d drm/i915: Avoid drm_atomic_state_put(NULL) on error paths 
The error paths in hsw_trans_edp_pipe_A_crc_wa() and
intel_prepare_reset() would potentially call drm_atomic_state_put with a
NULL state, which would lead to a NULL pointer dereference.

Found by coverity.

v2: Improve the error paths. (Chris)

Fixes: 0853695c3ba4 ("drm: Add reference counting to drm_atomic_state")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1484742868-9551-1-git-send-email-ander.conselvan.de.oliveira@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-01-18 13:47:22 +00:00
..
gvt
drm/i915: Use the MRU stack search after evicting
2017-01-11 12:25:15 +00:00
dvo_ch7xxx.c
…
dvo_ch7017.c
…
dvo_ivch.c
…
dvo_ns2501.c
…
dvo_sil164.c
…
dvo_tfp410.c
…
dvo.h
…
i915_cmd_parser.c
drm/i915: Consolidate checks for memcpy-from-wc support
2017-01-06 16:02:07 +00:00
i915_debugfs.c
drm/i915: Fix compiler warnings for i915_edp_psr_status()
2017-01-18 10:24:10 +00:00
i915_drv.c
drm/i915: Detect a failed GPU reset+recovery
2017-01-18 10:47:26 +00:00
i915_drv.h
drm/i915: Detect a failed GPU reset+recovery
2017-01-18 10:47:26 +00:00
i915_gem_batch_pool.c
drm/i915: Move GEM activity tracking into a common struct reservation_object
2016-10-28 20:53:50 +01:00
i915_gem_batch_pool.h
drm/i915: Double check the active status on the batch pool
2016-08-04 20:19:50 +01:00
i915_gem_context.c
drm/i915: Skip switch to kernel context if already done
2017-01-16 12:21:20 +00:00
i915_gem_context.h
drm/i915: Simplify testing for am-I-the-kernel-context?
2017-01-06 16:02:12 +00:00
i915_gem_dmabuf.c
drm/i915: Make GEM object alloc/free and stolen created take dev_priv
2016-12-01 18:00:15 +00:00
i915_gem_evict.c
drm/i915: Detect vma reserved for execbuf in evict-for-node
2017-01-12 07:51:49 +00:00
i915_gem_execbuffer.c
drm/i915: Replace 4096 with PAGE_SIZE or I915_GTT_PAGE_SIZE
2017-01-10 20:54:32 +00:00
i915_gem_fence_reg.c
drm/i915: Replace 4096 with PAGE_SIZE or I915_GTT_PAGE_SIZE
2017-01-10 20:54:32 +00:00
i915_gem_fence_reg.h
drm/i915: Replace 4096 with PAGE_SIZE or I915_GTT_PAGE_SIZE
2017-01-10 20:54:32 +00:00
i915_gem_gtt.c
drm/i915: Assert we do not attempt to reuse an allocated node
2017-01-16 12:21:20 +00:00
i915_gem_gtt.h
drm/i915: Eliminate superfluous i915_ggtt_view_normal
2017-01-14 16:18:36 +00:00
i915_gem_internal.c
drm/i915: Assert internal objects are page aligned
2017-01-17 09:09:56 +00:00
i915_gem_object.h
drm/i915: Split out i915_gem_object_set_tiling()
2017-01-10 15:29:14 +00:00
i915_gem_render_state.c
drm/i915: Replace 4096 with PAGE_SIZE or I915_GTT_PAGE_SIZE
2017-01-10 20:54:32 +00:00
i915_gem_render_state.h
drm/i915: Reuse the active golden render state batch
2016-10-28 20:53:44 +01:00
i915_gem_request.c
drm/i915: Construct a request even if the GPU is currently hung
2017-01-16 12:21:20 +00:00
i915_gem_request.h
drm/i915: Fix oopses in the overlay code due to i915_gem_active stuff
2017-01-03 11:41:17 +02:00
i915_gem_shrinker.c
Main pull request for drm for 4.10 kernel
2016-12-13 09:35:09 -08:00
i915_gem_stolen.c
drm/i915: Extract reserving space in the GTT to a helper
2017-01-11 12:28:13 +00:00
i915_gem_tiling.c
drm/i915: Replace 4096 with PAGE_SIZE or I915_GTT_PAGE_SIZE
2017-01-10 20:54:32 +00:00
i915_gem_timeline.c
drm/i915: Assert all timeline requests are gone before fini
2017-01-05 15:34:40 +00:00
i915_gem_timeline.h
drm/i915: Rename i915_gem_timeline.next_seqno to .seqno
2016-11-25 07:01:11 +00:00
i915_gem_userptr.c
Linux 4.10-rc2
2017-01-04 11:35:18 +01:00
i915_gem.c
drm/i915: Add comment how we treat hung contexts
2017-01-18 10:47:32 +00:00
i915_gem.h
drm/i915: introduce GEM_WARN_ON
2016-12-16 21:16:36 +00:00
i915_gpu_error.c
drm/i915: Use __printf markup to silence compiler
2017-01-16 12:20:17 +00:00
i915_guc_reg.h
drm/i915/guc: Exclude the upper end of the Global GTT for the GuC
2017-01-05 15:34:46 +00:00
i915_guc_submission.c
drm/i915/guc: Make the GuC fw loading helper functions general
2017-01-18 11:50:39 +02:00
i915_ioc32.c
…
i915_irq.c
drm/i915: Keep i915_handle_error kerneldoc parameters together
2017-01-12 16:09:35 +02:00
i915_memcpy.c
drm/i915: Mark the static key for movntqda as static
2016-08-17 12:36:07 +01:00
i915_mm.c
drm/i915: Use remap_io_mapping() to prefault all PTE in a single pass
2016-08-19 17:13:36 +01:00
i915_oa_hsw.c
drm/i915: Add more Haswell OA metric sets
2016-11-22 14:40:00 +01:00
i915_oa_hsw.h
drm/i915: advertise available metrics via sysfs
2016-11-22 14:38:51 +01:00
i915_params.c
drm/i915: Use the precomputed value for whether to enable command parsing
2016-11-24 13:52:34 +00:00
i915_params.h
drm/i915: Use the precomputed value for whether to enable command parsing
2016-11-24 13:52:34 +00:00
i915_pci.c
drm/i915: actually drive the BDW reserved IDs
2017-01-04 14:40:46 -02:00
i915_perf.c
drm/i915: Simplify releasing context reference
2016-12-18 16:18:53 +00:00
i915_pvinfo.h
drm/i915: Use offsetof() to calculate the offset of members in PVINFO page
2016-06-17 19:44:25 +01:00
i915_reg.h
drm/i915/psr: report live PSR2 State
2017-01-13 10:47:30 -08:00
i915_suspend.c
drm/i915: Make i915_save/restore_state and intel_i2c_reset take dev_priv
2016-12-01 18:01:23 +00:00
i915_sw_fence.c
drm/i915: Flush the change in debugobject before reallocation
2017-01-16 12:21:19 +00:00
i915_sw_fence.h
drm/i915: Hold a reference on the request for its fence chain
2016-12-05 11:00:32 +02:00
i915_sysfs.c
drm/i915/glk: Convert a few more IS_BROXTON() to IS_GEN9_LP()
2017-01-10 11:03:57 +02:00
i915_trace_points.c
…
i915_trace.h
drm/i915: Extract reserving space in the GTT to a helper
2017-01-11 12:28:13 +00:00
i915_utils.h
drm/i915: Move a few more utility macros to i915_utils.h
2017-01-05 21:02:04 +00:00
i915_vgpu.c
drm/i915: Fix a typo in vgt_balloon_space()
2017-01-17 15:08:58 +00:00
i915_vgpu.h
drm/i915: Fold vGPU active check into inner functions
2016-06-17 19:44:29 +01:00
i915_vma.c
drm/i915: Convert i915_ggtt_view to use an anonymous union
2017-01-14 16:18:03 +00:00
i915_vma.h
drm/i915: Convert i915_ggtt_view to use an anonymous union
2017-01-14 16:18:03 +00:00
intel_acpi.c
…
intel_atomic_plane.c
drm/i915: Add a cursor hack to allow converting legacy page flip to atomic, v3.
2016-12-19 17:48:52 +01:00
intel_atomic.c
drm/i915: Move intel_atomic_get_shared_dpll_state() to intel_dpll_mgr.c
2017-01-02 11:31:53 +02:00
intel_audio.c
drm/i915: Check num_pipes before initializing audio component
2016-12-22 12:29:17 +02:00
intel_bios.c
drm/i915: Use range_overflows()
2017-01-06 16:02:11 +00:00
intel_bios.h
drm/i915/dsi: Fix swapping of MIPI_SEQ_DEASSERT_RESET / MIPI_SEQ_ASSERT_RESET
2016-12-20 16:28:25 +02:00
intel_breadcrumbs.c
drm/i915/breadcrumbs: s/container_of/rb_entry/
2016-12-20 12:30:25 +00:00
intel_color.c
drm/i915: Assorted INTEL_INFO(dev) cleanups
2016-11-17 13:56:35 +00:00
intel_crt.c
drm/i915: Pass dev_priv to intel_setup_outputs()
2016-11-25 16:43:24 +02:00
intel_csr.c
drm/i915/DMC/GLK: Load DMC on GLK
2017-01-10 11:03:56 +02:00
intel_ddi.c
drm/i915: Rename intel_shared_dpll_config to intel_shared_dpll_state
2016-12-30 09:26:10 +02:00
intel_device_info.c
drm/i915/glk: Convert a few more IS_BROXTON() to IS_GEN9_LP()
2017-01-10 11:03:57 +02:00
intel_display.c
drm/i915: Avoid drm_atomic_state_put(NULL) on error paths
2017-01-18 13:47:22 +00:00
intel_dp_aux_backlight.c
drm/i915: Add Backlight Control using DPCD for eDP connectors (v9)
2016-04-26 15:17:54 +03:00
intel_dp_link_training.c
drm/i915/skl: drop workarounds for A0 and B0 revisions
2016-09-26 12:08:22 +03:00
intel_dp_mst.c
drm/i915: Validate mode against max. link data rate for DP MST
2016-12-05 16:23:18 +02:00
intel_dp.c
drm/i915/dp: Silence compiler for missing prototype
2017-01-16 12:20:17 +00:00
intel_dpio_phy.c
drm/i915: Only poll DW3_A when init DDI PHY for ports B and C.
2016-12-02 12:16:25 -08:00
intel_dpll_mgr.c
drm/i915: Move intel_atomic_get_shared_dpll_state() to intel_dpll_mgr.c
2017-01-02 11:31:53 +02:00
intel_dpll_mgr.h
drm/i915: Add dpll entrypoint for dumping hw state
2016-12-30 09:32:34 +02:00
intel_drv.h
drm/i915: Use new CRC debugfs API
2017-01-10 17:30:50 +01:00
intel_dsi_dcs_backlight.c
drm/i915: Mass convert dev->dev_private to to_i915(dev)
2016-07-04 12:54:07 +01:00
intel_dsi_panel_vbt.c
drm/i915/dsi: Fix chv_exec_gpio disabling the GPIOs it is setting
2016-12-20 16:28:38 +02:00
intel_dsi_pll.c
drm/i915: relax uncritical udelay_range()
2016-12-16 11:22:01 +02:00
intel_dsi.c
Linux 4.10-rc2
2017-01-04 11:35:18 +01:00
intel_dsi.h
drm/i915/dsi: CABC support for Panel PWM backlight control
2016-05-17 16:12:39 +03:00
intel_dvo.c
drm/i915: Pass dev_priv to intel_setup_outputs()
2016-11-25 16:43:24 +02:00
intel_engine_cs.c
drm/i915: Unify active context tracking between legacy/execlists/guc
2016-12-18 16:18:50 +00:00
intel_fbc.c
drm/i915: Remove useless casts to intel_plane_state
2017-01-12 15:36:38 +01:00
intel_fbdev.c
Merge tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc into drm-next
2017-01-10 08:06:56 +10:00
intel_fifo_underrun.c
drm/i915: Always use intel_get_crtc_for_pipe()
2016-11-01 16:40:38 +02:00
intel_frontbuffer.c
drm/i915: Use dev_priv consistently through the intel_frontbuffer interface
2016-08-04 20:20:03 +01:00
intel_frontbuffer.h
drm/i915: Move frontbuffer CS write tracking from ggtt vma to object
2016-11-18 11:15:59 +00:00
intel_guc_fwif.h
drm/i915/huc: Unified css_header struct for GuC and HuC
2017-01-18 11:50:43 +02:00
intel_guc_loader.c
drm/i915/huc: Unified css_header struct for GuC and HuC
2017-01-18 11:50:43 +02:00
intel_guc_log.c
drm/i915/guc: Move GuC log related functions into dedicated file
2017-01-18 07:29:04 +00:00
intel_gvt.c
Documentation/gpu: Add section for Intel GVT-g host support
2016-10-20 17:18:39 +08:00
intel_gvt.h
drm/i915/gvt: clean up intel_gvt.h as interface for i915 core
2016-10-20 17:18:30 +08:00
intel_hangcheck.c
drm/i915: Disable hangcheck when wedged
2016-11-22 17:42:17 +00:00
intel_hdmi.c
drm/i915/glk: Reuse broxton code for geminilake
2016-12-02 16:38:56 +02:00
intel_hotplug.c
drm/i915: More assorted dev_priv cleanups
2016-11-11 14:58:26 +00:00
intel_i2c.c
drm/i915: add some more "i" in platform names for consistency
2016-12-07 15:19:31 +02:00
intel_lrc.c
drm/i915: Invalidate the guc ggtt TLB upon insertion
2017-01-12 16:47:04 +00:00
intel_lrc.h
drm/i915: Replace 4096 with PAGE_SIZE or I915_GTT_PAGE_SIZE
2017-01-10 20:54:32 +00:00
intel_lspcon.c
drm/i915/lspcon: Remove unused force change mode parameter
2016-11-23 13:32:01 +02:00
intel_lvds.c
drm/i915: Intel panel detection cleanup
2016-12-13 17:25:26 +02:00
intel_mocs.c
drm/i915/glk: Reuse broxton code for geminilake
2016-12-02 16:38:56 +02:00
intel_mocs.h
drm/i915: Make various init functions take dev_priv
2016-12-01 18:01:15 +00:00
intel_modes.c
drm: Remove superflous linux/fb.h includes
2016-08-12 10:41:39 +02:00
intel_opregion.c
drm/i915/opregion: fill in the CADL from connector list, not DIDL
2016-11-17 12:45:59 +02:00
intel_overlay.c
drm/i915: Eliminate superfluous i915_ggtt_view_normal
2017-01-14 16:18:36 +00:00
intel_panel.c
drm/i915: clean up Hz to PWM for i965
2016-12-13 17:28:08 +02:00
intel_pipe_crc.c
drm/i915: Avoid drm_atomic_state_put(NULL) on error paths
2017-01-18 13:47:22 +00:00
intel_pm.c
Merge tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc into drm-next
2017-01-09 09:55:57 +10:00
intel_psr.c
drm/i915/psr: Fix compiler warnings for hsw_psr_disable()
2017-01-18 10:25:01 +00:00
intel_renderstate_gen6.c
…
intel_renderstate_gen7.c
…
intel_renderstate_gen8.c
…
intel_renderstate_gen9.c
…
intel_renderstate.h
drm/i915: Remove duplicate golden render state init from execlists
2016-08-02 22:58:30 +01:00
intel_ringbuffer.c
drm/i915: Remove WaDisableLSQCROPERFforOCL KBL workaround.
2017-01-12 15:48:08 +02:00
intel_ringbuffer.h
drm/i915: request ring to be pinned above GUC_WOPCM_TOP
2016-12-24 10:06:59 +00:00
intel_runtime_pm.c
drm/i915/dsi: Do not clear DPOUNIT_CLOCK_GATE_DISABLE from vlv_init_display_clock_gating
2016-12-20 16:27:46 +02:00
intel_sdvo_regs.h
…
intel_sdvo.c
drm/i915: distinguish G33 and Pineview from each other
2016-12-07 23:28:33 +02:00
intel_sideband.c
drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register()
2016-06-30 15:42:33 +01:00
intel_sprite.c
Merge tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc into drm-intel-next-queued
2017-01-04 11:41:10 +01:00
intel_tv.c
drm/i915: Pass dev_priv to intel_setup_outputs()
2016-11-25 16:43:24 +02:00
intel_uc.c
drm/i915/guc: Move GuC log related functions into dedicated file
2017-01-18 07:29:04 +00:00
intel_uc.h
drm/i915/huc: Unified css_header struct for GuC and HuC
2017-01-18 11:50:43 +02:00
intel_uncore.c
Linux 4.10-rc2
2017-01-04 11:35:18 +01:00
intel_vbt_defs.h
drm/915: Parsing the missed out DTD fields from the VBT
2016-12-23 15:13:39 +02:00
Kconfig
drm/i915/gvt/kvmgt: add vfio/mdev support to KVMGT
2016-12-16 16:55:26 +08:00
Kconfig.debug
drm/i915: Enable swfence debugobject support for i915.ko
2016-12-05 20:49:17 +00:00
Makefile
drm/i915/guc: Move GuC log related functions into dedicated file
2017-01-18 07:29:04 +00:00