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path: root/drivers/char/selection.c
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Diffstat (limited to 'drivers/char/selection.c')
-rw-r--r--drivers/char/selection.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/char/selection.c b/drivers/char/selection.c
index f97b9e848064..ebae344ce910 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);