drm: omapdrm: Fix page flip race with CRTC disable

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We can't rely on crtc->primary->fb in the page flip worker, as a racing
CRTC disable (due for instance to an explicit framebuffer deletion from
userspace) would set that field to NULL before the worker gets a change
to run. Store the framebuffer queued for page flip in a new field of
omap_crtc instead, and hold a reference to it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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Laurent Pinchart 2015-03-04 18:24:18 +02:00

parent c397cfd496

commit 0c19ac9d03

1 changed files with 19 additions and 5 deletions

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drivers/gpu/drm/omapdrm/omap_crtc.c

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