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authorAlan Cox <alan@linux.intel.com>2012-08-08 16:30:13 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-10 12:55:47 -0700
commit89c8d91e31f267703e365593f6bfebb9f6d2ad01 (patch)
treeb115c7738762abe4a8a6374debb4991382b2f785 /drivers/tty/tty_port.c
parentdc6802a771e91050fb686dfeeb9de4c6c9cadb79 (diff)
downloadlinux-89c8d91e31f267703e365593f6bfebb9f6d2ad01.tar.bz2
tty: localise the lock
The termios and other changes mean the other protections needed on the driver tty arrays should be adequate. Turn it all back on. This contains pieces folded in from the fixes made to the original patches | From: Geert Uytterhoeven <geert@linux-m68k.org> (fix m68k) | From: Paul Gortmaker <paul.gortmaker@windriver.com> (fix cris) | From: Jiri Kosina <jkosina@suze.cz> (lockdep) | From: Eric Dumazet <eric.dumazet@gmail.com> (lockdep) Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_port.c')
-rw-r--r--drivers/tty/tty_port.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index edcb827c1286..5246763cff0c 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -239,7 +239,7 @@ int tty_port_block_til_ready(struct tty_port *port,
/* block if port is in the process of being closed */
if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
- wait_event_interruptible_tty(port->close_wait,
+ wait_event_interruptible_tty(tty, port->close_wait,
!(port->flags & ASYNC_CLOSING));
if (port->flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
@@ -305,9 +305,9 @@ int tty_port_block_til_ready(struct tty_port *port,
retval = -ERESTARTSYS;
break;
}
- tty_unlock();
+ tty_unlock(tty);
schedule();
- tty_lock();
+ tty_lock(tty);
}
finish_wait(&port->open_wait, &wait);