From 27a473ee7017dabac9073d0c57db72bd680409a8 Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Thu, 27 Aug 2009 12:22:43 -0700 Subject: [PATCH] xenfb: connect to backend before registering fb commit 0a80fb10239b04c45e5e80aad8d4b2ca5ac407b2 upstream. As soon as the framebuffer is registered, our methods may be called by the kernel. This leads to a crash as xenfb_refresh() gets called before we have the irq. Connect to the backend before registering our framebuffer with the kernel. [ Fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=14059 ] Signed-off-by: Michal Schmidt Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- drivers/video/xen-fbfront.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 2493f05e9f6..d886bf9ca66 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -454,6 +454,10 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, xenfb_init_shared_page(info, fb_info); + ret = xenfb_connect_backend(dev, info); + if (ret < 0) + goto error; + ret = register_framebuffer(fb_info); if (ret) { fb_deferred_io_cleanup(fb_info); @@ -464,10 +468,6 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, } info->fb_info = fb_info; - ret = xenfb_connect_backend(dev, info); - if (ret < 0) - goto error; - xenfb_make_preferred_console(); return 0; -- 2.11.4.GIT