tty: replace BKL with a new tty_lock
As a preparation for replacing the big kernel lock
in the TTY layer, wrap all the callers in new
macros tty_lock, tty_lock_nested and tty_unlock.
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>
diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c
index ecbe479..90b3ec0 100644
--- a/drivers/char/serial167.c
+++ b/drivers/char/serial167.c
@@ -1505,7 +1505,7 @@
printk("cy_ioctl %s, cmd = %x arg = %lx\n", tty->name, cmd, arg); /* */
#endif
- lock_kernel();
+ tty_lock();
switch (cmd) {
case CYGETMON:
@@ -1561,7 +1561,7 @@
default:
ret_val = -ENOIOCTLCMD;
}
- unlock_kernel();
+ tty_unlock();
#ifdef SERIAL_DEBUG_OTHER
printk("cy_ioctl done\n");