printk-release-lockbuf_lock-before-calling-console_trylock_for_printk-fix

fix have_callable_console() comment

Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 5077c8294b4133074e714ee4864fd69d37ef3297..ee7199b4259be6bc61a032426196bc9c081986ee 100644 (file)
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1377,7 +1377,10 @@ static void zap_locks(void)
        sema_init(&console_sem, 1);
 }
 
-/* Check if we have any console registered that can be called early in boot. */
+/*
+ * Check if we have any console that is capable of printing while cpu is
+ * booting or shutting down. Requires console_sem.
+ */
 static int have_callable_console(void)
 {
        struct console *con;