X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fvt.c;h=6c94879e0b99b6f6a369d69a188b347436abe550;hb=b3899c6613160b18f79e4356184de55311302fe4;hp=0900d1dbee59916e28bd60b7cb650cea7d9a3b41;hpb=1a56f54c351d8d2e276aefc4f4094037c178d6c7;p=pandora-kernel.git

diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 0900d1dbee59..6c94879e0b99 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -2328,6 +2328,10 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
 		case TIOCL_SETVESABLANK:
 			set_vesa_blanking(p);
 			break;
+		case TIOCL_GETKMSGREDIRECT:
+			data = kmsg_redirect;
+			ret = __put_user(data, p);
+			break;
 		case TIOCL_SETKMSGREDIRECT:
 			if (!capable(CAP_SYS_ADMIN)) {
 				ret = -EPERM;
@@ -2489,7 +2493,7 @@ static int con_open(struct tty_struct *tty, struct file *filp)
 }
 
 /*
- * We take tty_sem in here to prevent another thread from coming in via init_dev
+ * We take tty_mutex in here to prevent another thread from coming in via init_dev
  * and taking a ref against the tty while we're in the process of forgetting
  * about it and cleaning things up.
  *
@@ -2497,7 +2501,7 @@ static int con_open(struct tty_struct *tty, struct file *filp)
  */
 static void con_close(struct tty_struct *tty, struct file *filp)
 {
-	down(&tty_sem);
+	mutex_lock(&tty_mutex);
 	acquire_console_sem();
 	if (tty && tty->count == 1) {
 		struct vc_data *vc = tty->driver_data;
@@ -2507,15 +2511,15 @@ static void con_close(struct tty_struct *tty, struct file *filp)
 		tty->driver_data = NULL;
 		release_console_sem();
 		vcs_remove_devfs(tty);
-		up(&tty_sem);
+		mutex_unlock(&tty_mutex);
 		/*
-		 * tty_sem is released, but we still hold BKL, so there is
+		 * tty_mutex is released, but we still hold BKL, so there is
 		 * still exclusion against init_dev()
 		 */
 		return;
 	}
 	release_console_sem();
-	up(&tty_sem);
+	mutex_unlock(&tty_mutex);
 }
 
 static void vc_init(struct vc_data *vc, unsigned int rows,
@@ -2869,9 +2873,9 @@ void unblank_screen(void)
 }
 
 /*
- * We defer the timer blanking to work queue so it can take the console semaphore
+ * We defer the timer blanking to work queue so it can take the console mutex
  * (console operations can still happen at irq time, but only from printk which
- * has the console semaphore. Not perfect yet, but better than no locking
+ * has the console mutex. Not perfect yet, but better than no locking
  */
 static void blank_screen_t(unsigned long dummy)
 {