tree 2003e099e16cb2204226253a95b3fbac981977c2
parent de0c8cb314cc737c47a00de33cd6246accf94192
author Alan Cox <alan@linux.intel.com> 1275425579 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1281473262 -0700

serial: trim locking on the helpers

The port mutex protects port->tty, but these paths never need to walk from
port->tty. They do need the low level lock as the API expects that but they
already also take it.

Thus we can drop the extra mutex lock calls here.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>