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Diffstat (limited to 'kernel/printk.c')
-rw-r--r--kernel/printk.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index 051d27e36a6..8451dfc31d2 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -732,7 +732,7 @@ int __init add_preferred_console(char *name, int idx, char *options)
return 0;
}
-int __init update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options)
+int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options)
{
struct console_cmdline *c;
int i;
@@ -1083,6 +1083,19 @@ int unregister_console(struct console *console)
}
EXPORT_SYMBOL(unregister_console);
+static int __init disable_boot_consoles(void)
+{
+ if (console_drivers != NULL) {
+ if (console_drivers->flags & CON_BOOT) {
+ printk(KERN_INFO "turn off boot console %s%d\n",
+ console_drivers->name, console_drivers->index);
+ return unregister_console(console_drivers);
+ }
+ }
+ return 0;
+}
+late_initcall(disable_boot_consoles);
+
/**
* tty_write_message - write a message to a certain tty, not just the console.
* @tty: the destination tty_struct