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authorDmitrii Tcvetkov <demfloro@demfloro.ru>2016-06-20 13:52:14 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-07-27 09:47:34 -0700
commit15dc6a484a8e4b4a4f8a43bc0ffdcb28dca51932 (patch)
tree2905857b9021b80e8f57c76ce876d6b2e81961c5 /drivers/gpu
parentfbf9b544a2bc0900142c723b804889aa0f35216c (diff)
drm/nouveau: fix for disabled fbdev emulation
commit 52dfcc5ccfbb6697ac3cac7f7ff1e712760e1216 upstream. 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()") Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_fbcon.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index bd89c8656c93..e40a1b07a014 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -557,7 +557,8 @@ 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: