From: "Ortwin Glück" <odi@odi.ch>
To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: drm/nouveau: Work around a crash during boot if noaccel is set.
Date: Fri, 24 Aug 2012 16:52:54 +0200 [thread overview]
Message-ID: <50379546.6070802@odi.ch> (raw)
NB: still broken in 3.5 as well.
Signed-off-by: Ortwin Glück <odi@odi.ch>
---
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c
b/drivers/gpu/drm/nouveau/nv50_display.c
index b244d99..c7ffa63 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -650,6 +650,12 @@ nv50_display_vblank_crtc_handler(struct drm_device
*dev, int crtc)
struct nouveau_software_priv *psw = nv_engine(dev, NVOBJ_ENGINE_SW);
struct nouveau_software_chan *pch, *tmp;
+ if (!psw) {
+ WARN_ON_ONCE(1);
+ printk(KERN_ERR "NULL software engine\n");
+ return;
+ }
+
list_for_each_entry_safe(pch, tmp, &psw->vblank, vblank.list) {
if (pch->vblank.head != crtc)
continue;
reply other threads:[~2012-08-24 14:53 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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