From e45410185006f748b0d48292550cfad2e37f47a5 Mon Sep 17 00:00:00 2001 From: Ilia Mirkin 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 Signed-off-by: Ilia Mirkin Signed-off-by: Greg Kroah-Hartman --- 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 e2d7f38447c..3044b07230d 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c @@ -1295,7 +1295,11 @@ 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; } /** -- cgit v1.2.3