From: Dmitrii Tcvetkov <demfloro-dmrBKrQMA3sox3rIn2DAYQ@public.gmane.org>
To: bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [PATCH] drm/nouveau/nouveau_fbcon.c: fix for disabled fbdev emulation
Date: Mon, 20 Jun 2016 13:52:14 +0300 [thread overview]
Message-ID: <20160620135214.49c71d7e@note> (raw)
Hello,
after this commit:
commit f045f459d925138fe7d6193a8c86406bda7e49da
Author: Ben Skeggs <bskeggs@redhat.com>
Date: Thu Jun 2 12:23:31 2016 +1000
drm/nouveau/fbcon: fix out-of-bounds memory accesses
kernel started to oops when loading nouveau module when using GTX 780 Ti video adapter. This patch fixes the problem.
Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=120591
Signed-off-by: Dmitrii Tcvetkov <demfloro@demfloro.ru>
Suggested-by: Ilia Mirkin <imirkin@alum.mit.edu>
Fixes: f045f459d925 ("nouveau_fbcon_init()")
---
drivers/gpu/drm/nouveau/nouveau_fbcon.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 300ea03..d1f248f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -552,7 +552,8 @@ nouveau_fbcon_init(struct drm_device *dev)
if (ret)
goto fini;
- fbcon->helper.fbdev->pixmap.buf_align = 4;
+ if (fbcon->helper.fbdev)
+ fbcon->helper.fbdev->pixmap.buf_align = 4;
return 0;
fini:
--
2.9.0
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