linux-kernel - [PATCH -next] printk: fix broken 'console' kernel parameter

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Message-Id: <1350999678-17441-1-git-send-email-ming.lei@canonical.com>
Date:	Tue, 23 Oct 2012 21:41:18 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	linux-kernel@...r.kernel.org
Cc:	Ming Lei <ming.lei@...onical.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Samuel Thibault <samuel.thibault@...-lyon.org>,
	Joe Perches <joe@...ches.com>
Subject: [PATCH -next] printk: fix broken 'console' kernel parameter

If CONFIG_A11Y_BRAILLE_CONSOLE is not enabled, _braille_console_setup()
should return NULL to parse the parameter further in console_setup().

This patch fixes the broken 'console' kernel parameter, which makes the
Pandaboard not boot with 'console=ttyO2'.

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Samuel Thibault <samuel.thibault@...-lyon.org>
Cc: Joe Perches <joe@...ches.com>

Signed-off-by: Ming Lei <ming.lei@...onical.com>
---
 kernel/printk/braille.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/printk/braille.h b/kernel/printk/braille.h
index d2e6bc3..769d771 100644
--- a/kernel/printk/braille.h
+++ b/kernel/printk/braille.h
@@ -28,7 +28,7 @@ braille_set_options(struct console_cmdline *c, char *brl_options)
 static inline char *
 _braille_console_setup(char **str, char **brl_options)
 {
-	return *str;
+	return NULL;
 }
 
 static inline int
-- 
1.7.9.5

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