compositor-drm: Remove destroy listeners when disabling planes
When an unused plane is disabled, the destroy listener for a previously
used buffer needs to be removed. This fixes a crash when an overlay
would be reenabled using the same buffer as before, causing the destroy
listener to be inserted twice.
diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index d969d52..6c182d7 100644
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -29,6 +29,7 @@
#include <fcntl.h>
#include <unistd.h>
#include <linux/input.h>
+#include <assert.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
@@ -520,8 +521,13 @@
weston_log("failed to disable plane: %d: %s\n",
ret, strerror(errno));
drmModeRmFB(c->drm.fd, s->fb_id);
- s->surface = NULL;
- s->pending_surface = NULL;
+
+ if (s->surface) {
+ s->surface = NULL;
+ wl_list_remove(&s->destroy_listener.link);
+ }
+
+ assert(!s->pending_surface);
s->fb_id = 0;
s->pending_fb_id = 0;
}