linux-kernel - [tip:x86/fb] fbdev: fbcon: select VT_HW_CONSOLE

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Message-ID: <tip-765d5b9c2b72f5b99722cdfcf4bf8f88c556cf92@git.kernel.org>
Date:	Fri, 2 Aug 2013 16:40:58 -0700
From:	tip-bot for David Herrmann <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	tglx@...utronix.de, hpa@...ux.intel.com, dh.herrmann@...il.com
Subject: [tip:x86/fb] fbdev: fbcon: select VT_HW_CONSOLE_BINDING

Commit-ID:  765d5b9c2b72f5b99722cdfcf4bf8f88c556cf92
Gitweb:     http://git.kernel.org/tip/765d5b9c2b72f5b99722cdfcf4bf8f88c556cf92
Author:     David Herrmann <dh.herrmann@...il.com>
AuthorDate: Fri, 2 Aug 2013 14:05:27 +0200
Committer:  H. Peter Anvin <hpa@...ux.intel.com>
CommitDate: Fri, 2 Aug 2013 16:17:51 -0700

fbdev: fbcon: select VT_HW_CONSOLE_BINDING

fbdev provides framebuffer hotplugging, hence, we need to allow fbcon to
unbind from framebuffers. Unfortunately, fbcon_fb_unbind() cannot unbind
from the last framebuffer, unless console-unbinding is supported.

Fixing fbcon_unbind() to return 0 caused some horrible NULL-derefs in the
VT layer and I couldn't figure out why. Hence, lets just require
console-unbinding so fbdev hotplugging works with fbcon.

Signed-off-by: David Herrmann <dh.herrmann@...il.com>
Link: http://lkml.kernel.org/r/1375445127-15480-9-git-send-email-dh.herrmann@gmail.com
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
---
 drivers/video/console/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 8c30603..846caab 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -92,7 +92,8 @@ config DUMMY_CONSOLE_ROWS
 
 config FRAMEBUFFER_CONSOLE
 	tristate "Framebuffer Console support"
-	depends on FB
+	depends on FB && !UML
+	select VT_HW_CONSOLE_BINDING
 	select CRC32
 	select FONT_SUPPORT
 	help
--
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