drivers/tty: use printk_ratelimited() instead of printk_ratelimit()

Since the printk_ratelimit() shouldn't be used anymore (see comment in
include/linux/printk.h), replace it with printk_ratelimited().

Signed-off-by: Manuel Zerpies <manuel.f.zerpies@ww.stud.uni-erlangen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 6556f74..150e4f7 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -94,6 +94,7 @@
 #include <linux/delay.h>
 #include <linux/seq_file.h>
 #include <linux/serial.h>
+#include <linux/ratelimit.h>
 
 #include <linux/uaccess.h>
 #include <asm/system.h>
@@ -1420,8 +1421,7 @@
 
 	/* call the tty release_tty routine to clean out this slot */
 err_release_tty:
-	if (printk_ratelimit())
-		printk(KERN_INFO "tty_init_dev: ldisc open failed, "
+	printk_ratelimited(KERN_INFO "tty_init_dev: ldisc open failed, "
 				 "clearing slot %d\n", idx);
 	release_tty(tty, idx);
 	return ERR_PTR(retval);