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authorJonathan Gray <jsg@cvs.openbsd.org>2019-04-30 01:39:20 +0000
committerJonathan Gray <jsg@cvs.openbsd.org>2019-04-30 01:39:20 +0000
commitd27fac0ea6d8f135821a53cf35893d80de612921 (patch)
treef004386b33701bdc72e62c8d3333c328251b596e
parent8436fd1223c3f2ccd82029e2dc6d56e46b0592ae (diff)
Add an equivalent test for master in drm_fb_helper_is_bound()
Prevents black screens on hotplugging a new display with Xorg running which required a vt switch for screens to be useable. Reported by various people on misc@. Tested by and ok sthen@
-rw-r--r--sys/dev/pci/drm/drm_fb_helper.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/dev/pci/drm/drm_fb_helper.c b/sys/dev/pci/drm/drm_fb_helper.c
index 237f274ebe1..785ed969911 100644
--- a/sys/dev/pci/drm/drm_fb_helper.c
+++ b/sys/dev/pci/drm/drm_fb_helper.c
@@ -575,6 +575,9 @@ static bool drm_fb_helper_is_bound(struct drm_fb_helper *fb_helper)
#ifdef notyet
if (READ_ONCE(dev->master))
return false;
+#else
+ if (!SPLAY_EMPTY(&dev->files))
+ return false;
#endif
drm_for_each_crtc(crtc, dev) {