2016-12-02 10:50:26 +00:00
|
|
|
From 08d2762526279939513276a142849f5a82b31106 Mon Sep 17 00:00:00 2001
|
2016-04-24 11:03:39 +00:00
|
|
|
From: Eric Anholt <eric@anholt.net>
|
|
|
|
|
Date: Fri, 5 Feb 2016 15:06:15 -0800
|
2016-09-10 12:54:26 +00:00
|
|
|
Subject: [PATCH] drm/vc4: Fix a framebuffer reference leak on async flip
|
|
|
|
|
interrupt.
|
2016-04-24 11:03:39 +00:00
|
|
|
|
|
|
|
|
We'd need X to queue up an async pageflip while another is
|
|
|
|
|
outstanding, and then take a SIGIO. I think X actually avoids sending
|
|
|
|
|
out the next pageflip while one's already queued, but I'm not sure.
|
|
|
|
|
|
|
|
|
|
Signed-off-by: Eric Anholt <eric@anholt.net>
|
|
|
|
|
(cherry picked from commit 48627eb8dc55c60d35794105f6f79fb627347dbd)
|
|
|
|
|
---
|
|
|
|
|
drivers/gpu/drm/vc4/vc4_crtc.c | 1 +
|
|
|
|
|
1 file changed, 1 insertion(+)
|
|
|
|
|
|
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
|
|
|
|
|
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
|
|
|
|
|
@@ -527,6 +527,7 @@ static int vc4_async_page_flip(struct dr
|
|
|
|
|
/* Make sure all other async modesetes have landed. */
|
|
|
|
|
ret = down_interruptible(&vc4->async_modeset);
|
|
|
|
|
if (ret) {
|
|
|
|
|
+ drm_framebuffer_unreference(fb);
|
|
|
|
|
kfree(flip_state);
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
