tty: introduce wait_event_interruptible_tty

Calling wait_event_interruptible implicitly
releases the BKL when it sleeps, but we need
to do this explcitly when we have converted
it to a mutex.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index f848e188deae..94bfb9f238e1 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -3992,7 +3992,7 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
          */
         if (tty_hung_up_p(filp) ||
             (info->flags & ASYNC_CLOSING)) {
-                wait_event_interruptible(info->close_wait,
+                wait_event_interruptible_tty(info->close_wait,
                         !(info->flags & ASYNC_CLOSING));
 #ifdef SERIAL_DO_RESTART
                 if (info->flags & ASYNC_HUP_NOTIFY)
@@ -4150,7 +4150,7 @@ rs_open(struct tty_struct *tty, struct file * filp)
          */
         if (tty_hung_up_p(filp) ||
             (info->flags & ASYNC_CLOSING)) {
-                wait_event_interruptible(info->close_wait,
+                wait_event_interruptible_tty(info->close_wait,
                         !(info->flags & ASYNC_CLOSING));
 #ifdef SERIAL_DO_RESTART
                 return ((info->flags & ASYNC_HUP_NOTIFY) ?