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0cbc330e12
This patch resolves a dead lock issue that could be incurred when
exynos_drm_crtc_dpms function was called.
The exynos_drm_crtc_dpms function waits for the completion of pended
page flip events. However, preclose callback - this releases all unhandled
page flip events - is called prior to the exynos_drm_crtc_dpms function call
when drm is closed. So at this time, this will make the exynos_drm_crtc_dpms
to wait infiniately for the completion of the page flip events.
This patch releases the unhandled page flip events at postclose instead
of preclose so that exynos_drm_crtc_dpms function can be waked up.
Changelog v2:
- fix a memory leak when drm is closed.
. it has a memory leak when a requeste page flip is handled after
drm_events_release() is called and before drm_fb_release()
is called. At this time, a drm_pending_event will not be freed.
So also this chage releases the drm_pending_event at postclose().
And it calls drm_vblank_put() for pair if there is any unhandled page
flip event.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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| .. | ||
| exynos_ddc.c | ||
| exynos_drm_buf.c | ||
| exynos_drm_buf.h | ||
| exynos_drm_connector.c | ||
| exynos_drm_connector.h | ||
| exynos_drm_core.c | ||
| exynos_drm_crtc.c | ||
| exynos_drm_crtc.h | ||
| exynos_drm_dmabuf.c | ||
| exynos_drm_dmabuf.h | ||
| exynos_drm_drv.c | ||
| exynos_drm_drv.h | ||
| exynos_drm_encoder.c | ||
| exynos_drm_encoder.h | ||
| exynos_drm_fb.c | ||
| exynos_drm_fb.h | ||
| exynos_drm_fbdev.c | ||
| exynos_drm_fbdev.h | ||
| exynos_drm_fimc.c | ||
| exynos_drm_fimc.h | ||
| exynos_drm_fimd.c | ||
| exynos_drm_g2d.c | ||
| exynos_drm_g2d.h | ||
| exynos_drm_gem.c | ||
| exynos_drm_gem.h | ||
| exynos_drm_gsc.c | ||
| exynos_drm_gsc.h | ||
| exynos_drm_hdmi.c | ||
| exynos_drm_hdmi.h | ||
| exynos_drm_iommu.c | ||
| exynos_drm_iommu.h | ||
| exynos_drm_ipp.c | ||
| exynos_drm_ipp.h | ||
| exynos_drm_plane.c | ||
| exynos_drm_plane.h | ||
| exynos_drm_rotator.c | ||
| exynos_drm_rotator.h | ||
| exynos_drm_vidi.c | ||
| exynos_drm_vidi.h | ||
| exynos_hdmi.c | ||
| exynos_hdmi.h | ||
| exynos_hdmiphy.c | ||
| exynos_mixer.c | ||
| Kconfig | ||
| Makefile | ||
| regs-fimc.h | ||
| regs-gsc.h | ||
| regs-hdmi.h | ||
| regs-mixer.h | ||
| regs-rotator.h | ||
| regs-vp.h | ||