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authorSimon Ser <contact@emersion.fr>2021-01-12 11:41:45 +0100
committerSimon Ser <contact@emersion.fr>2021-01-12 11:41:45 +0100
commit5d054258af1bbdad43758d0161ef4ca10f41aaec (patch)
tree563beacb2a0577bbf866f3c0d6d0f9bb8393bee3 /backend
parent3f7e0cf5f073ef7ef88128e8661b959cc9140490 (diff)
backend/drm: fix segfault in page_flip_handler
Since 5b1b43c68c7a ("backend/drm: make wlr_drm_plane.{pending,queued,current}_fb pointers"), current_fb can be NULL if there's no buffer. If current_fb is not NULL, current_fb->wlr_buf is guaranteed to not be NULL. Closes: https://github.com/swaywm/wlroots/issues/2634
Diffstat (limited to 'backend')
-rw-r--r--backend/drm/drm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index 6b6e49a6..b58241af 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -1484,7 +1484,7 @@ static void page_flip_handler(int fd, unsigned seq,
* data between the GPUs, even if we were using the direct scanout
* interface.
*/
- if (!drm->parent && plane->current_fb->wlr_buf &&
+ if (!drm->parent && plane->current_fb &&
wlr_client_buffer_get(plane->current_fb->wlr_buf)) {
present_flags |= WLR_OUTPUT_PRESENT_ZERO_COPY;
}