diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-07-03 21:05:45 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-07-03 21:05:45 +0100 |
| commit | 976ecd12b8144d066a23fe97c6fbfc1ac8470af7 (patch) | |
| tree | 3305e7d5ba95d3005a8b213dd2c211a632844768 | |
| parent | 1d6bebf2ecf92924492c491d9c3a72edba95f907 (diff) | |
[PATCH] Serial: Fix console port spinlock initialisation
Initialise the spinlock for port being used by the console early, but
don't re-initialise it again later.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | drivers/serial/serial_core.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 139863a787f..54699c3a00a 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -1808,6 +1808,12 @@ uart_set_options(struct uart_port *port, struct console *co, struct termios termios; int i; + /* + * Ensure that the serial console lock is initialised + * early. + */ + spin_lock_init(&port->lock); + memset(&termios, 0, sizeof(struct termios)); termios.c_cflag = CREAD | HUPCL | CLOCAL; @@ -2196,10 +2202,16 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port) state->port = port; - spin_lock_init(&port->lock); port->cons = drv->cons; port->info = state->info; + /* + * If this port is a console, then the spinlock is already + * initialised. + */ + if (!uart_console(port)) + spin_lock_init(&port->lock); + uart_configure_port(drv, state, port); /* |