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gallium: do not increase ref count of the new throttle fence

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A new throttle fence was initialized to 1, and increased by 1
again when it's put in drawable->throttle_fence; the ref was
decreased by 1 when it's removed from drawable->throttle_fence,
and never reached to 0, caused leak.

Fixes: ff77bf5cbf7 ("gallium: simplify throttle implementation")
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/1949

Signed-off-by: James Xiong <james.xiong@intel.com>
Reported-by: Florian Wesch <fw@info-beamer.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
This commit is contained in:
James Xiong 2019-10-16 09:22:22 -07:00 • committed by José Casanova Crespo
parent e8095f2af0
commit 023282a4f6
1 changed files with 4 additions and 2 deletions
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6
src/gallium/state_trackers/dri/dri_drawable.c
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@ -489,9 +489,11 @@ dri_flush(__DRIcontext *cPriv,
st->flush(st, flush_flags, &new_fence);
/* throttle on the previous fence */
if (drawable->throttle_fence)
if (drawable->throttle_fence) {
screen->fence_finish(screen, NULL, drawable->throttle_fence, PIPE_TIMEOUT_INFINITE);
screen->fence_reference(screen, &drawable->throttle_fence, new_fence);
screen->fence_reference(screen, &drawable->throttle_fence, NULL);
}
drawable->throttle_fence = new_fence;
}
else if (flags & (__DRI2_FLUSH_DRAWABLE | __DRI2_FLUSH_CONTEXT)) {
st->flush(st, flush_flags, NULL);