linux-kernel - [PATCH 3.12 123/182] drivers/tty/hvc: don't free hvc_console

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Message-Id: <d8659036c829de3326d32dcd0bd185142d3755ea.1399973152.git.jslaby@suse.cz>
Date:	Tue, 13 May 2014 11:27:55 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Tomoki Sekiyama <tomoki.sekiyama@....com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 123/182] drivers/tty/hvc: don't free hvc_console_setup after init

From: Tomoki Sekiyama <tomoki.sekiyama@....com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 501fed45b7e8836ee9373f4d31e2d85e3db6103a upstream.

When 'console=hvc0' is specified to the kernel parameter in x86 KVM guest,
hvc console is setup within a kthread. However, that will cause SEGV
and the boot will fail when the driver is builtin to the kernel,
because currently hvc_console_setup() is annotated with '__init'. This
patch removes '__init' to boot the guest successfully with 'console=hvc0'.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@....com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/tty/hvc/hvc_console.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 620da5f88e91..e8e06d82acf0 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -190,7 +190,7 @@ static struct tty_driver *hvc_console_device(struct console *c, int *index)
 	return hvc_driver;
 }
 
-static int __init hvc_console_setup(struct console *co, char *options)
+static int hvc_console_setup(struct console *co, char *options)
 {	
 	if (co->index < 0 || co->index >= MAX_NR_HVC_CONSOLES)
 		return -ENODEV;
-- 
1.9.3

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