[PATCH 3.2 47/92] drivers/tty/hvc: don't free hvc_console_setup after init

From: Ben Hutchings
Date: Fri Jun 06 2014 - 21:27:40 EST

3.2.60-rc1 review patch. If anyone has any objections, please let me know.


From: Tomoki Sekiyama <tomoki.sekiyama@xxxxxxx>

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@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
drivers/tty/hvc/hvc_console.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -190,7 +190,7 @@ static struct tty_driver *hvc_console_de
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;

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