[added to the 3.18 stable tree] drm/nouveau: fix for disabled fbdev emulation
From: Sasha Levin <hidden>
Date: 2016-07-12 03:02:34
Subsystem:
drm driver for nvidia geforce/quadro gpus, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
Lyude Paul, Danilo Krummrich, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
From: Dmitrii Tcvetkov <redacted>
This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 52dfcc5ccfbb6697ac3cac7f7ff1e712760e1216 ]
Hello,
after this commit:
commit f045f459d925138fe7d6193a8c86406bda7e49da
Author: Ben Skeggs [off-list ref]
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 <redacted>
Suggested-by: Ilia Mirkin <redacted>
Fixes: f045f459d925 ("nouveau_fbcon_init()")
Signed-off-by: Ben Skeggs <redacted>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <redacted>
---
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 ff6358f..993c9a0 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c@@ -568,7 +568,8 @@ 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:
--
2.5.0