[3.8.y.z extended stable] Patch "drm/nouveau/bios: make jump conditional" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    drm/nouveau/bios: make jump conditional

to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.16.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

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>From 6da692fac6ace56645b7618d5764353905dbc430 Mon Sep 17 00:00:00 2001
From: Ilia Mirkin <imirkin at alum.mit.edu>
Date: Sun, 5 Jan 2014 20:07:02 -0500
Subject: drm/nouveau/bios: make jump conditional
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 6d60792ec059d9f2139828f9f017679abb81aa73 upstream.

This fixes a hang in VBIOS scripts of the form "condition; jump".
The jump used to always be executed, while now it will only be
executed if the condition is true.

See https://bugs.freedesktop.org/show_bug.cgi?id=72943

Reported-by: Darcy Brás da Silva <dardevelin at cidadecool.com>
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/gpu/drm/nouveau/core/subdev/bios/init.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
index ad6662c..9e0cb43 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
@@ -1262,7 +1262,11 @@ init_jump(struct nvbios_init *init)
 	u16 offset = nv_ro16(bios, init->offset + 1);

 	trace("JUMP\t0x%04x\n", offset);
-	init->offset = offset;
+
+	if (init_exec(init))
+		init->offset = offset;
+	else
+		init->offset += 3;
 }

 /**
--
1.8.3.2