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27 lines
949 B
Diff
27 lines
949 B
Diff
From 2ee2a1f157f4eb81c2aca3a076fe74c1e587d2f8 Mon Sep 17 00:00:00 2001
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From: Eric Anholt <eric@anholt.net>
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Date: Fri, 5 Feb 2016 15:06:15 -0800
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Subject: [PATCH] drm/vc4: Fix a framebuffer reference leak on async flip
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interrupt.
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We'd need X to queue up an async pageflip while another is
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outstanding, and then take a SIGIO. I think X actually avoids sending
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out the next pageflip while one's already queued, but I'm not sure.
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Signed-off-by: Eric Anholt <eric@anholt.net>
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(cherry picked from commit 48627eb8dc55c60d35794105f6f79fb627347dbd)
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---
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drivers/gpu/drm/vc4/vc4_crtc.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/gpu/drm/vc4/vc4_crtc.c
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+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
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@@ -527,6 +527,7 @@ static int vc4_async_page_flip(struct dr
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/* Make sure all other async modesetes have landed. */
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ret = down_interruptible(&vc4->async_modeset);
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if (ret) {
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+ drm_framebuffer_unreference(fb);
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kfree(flip_state);
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return ret;
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}
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