xf86-video-intel: src/sna/sna_display.c
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Mon Dec 3 09:07:35 UTC 2018
src/sna/sna_display.c | 3 +++
1 file changed, 3 insertions(+)
New commits:
commit e5ff8e1828f97891c819c919d7115c6e18b2eb1f
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Mon Dec 3 08:58:39 2018 +0000
sna: Skip restoring a mode for link-status=bad if the crtc was idle
If we do not have a mode (and bo) enabled on the crtc, then trying to
restore that bo ends up in a NULL pointer dereference.
Reported-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index 307d5344..f6a6d99b 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -5470,6 +5470,9 @@ output_retrain_link(struct sna *sna, struct sna_output *output)
int crtc_x = crtc->offset & 0xffff;
int crtc_y = crtc->offset >> 16;
+ if (!crtc->bo)
+ return false;
+
return sna_crtc_flip(sna, crtc, crtc->bo, crtc_x, crtc_y);
}
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