1 files changed, 11 insertions, 2 deletions

diff --git a/drivers/char/selection.c b/drivers/char/selection.c
index f97b9e84806..ebae344ce91 100644
--- a/drivers/char/selection.c
+++ b/drivers/char/selection.c
@@ -26,6 +26,7 @@
 #include <linux/selection.h>
 #include <linux/tiocl.h>
 #include <linux/console.h>
+#include <linux/smp_lock.h>
 
 /* Don't take this from <ctype.h>: 011-015 on the screen aren't spaces */
 #define isspace(c)      ((c) == ' ')
@@ -312,12 +313,20 @@ int paste_selection(struct tty_struct *tty)
         struct  tty_ldisc *ld;
         DECLARE_WAITQUEUE(wait, current);
 
+        /* always called with BTM from vt_ioctl */
+        WARN_ON(!tty_locked());
+
         acquire_console_sem();
         poke_blanked_console();
         release_console_sem();
 
-        ld = tty_ldisc_ref_wait(tty);
-        
+        ld = tty_ldisc_ref(tty);
+        if (!ld) {
+                tty_unlock();
+                ld = tty_ldisc_ref_wait(tty);
+                tty_lock();
+        }
+
         add_wait_queue(&vc->paste_wait, &wait);
         while (sel_buffer && sel_buffer_lth > pasted) {
                 set_current_state(TASK_INTERRUPTIBLE);