diff options
| author | Arjan van de Ven <arjan@infradead.org> | 2006-01-12 19:44:32 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-12 19:44:32 +0100 |
| commit | f392ecfa12de9a2baf72789b00557bac040d6171 (patch) | |
| tree | e406fbff12d8b7fa173a23f871d1b3b24473d144 /drivers/serial/serial_txx9.c | |
| parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb (diff) | |
| download | linux-f392ecfa12de9a2baf72789b00557bac040d6171.tar.xz linux-f392ecfa12de9a2baf72789b00557bac040d6171.zip | |
[SERIAL] turn serial semaphores into mutexes
Turn several drivers/serial/ semaphores-used-as-mutex into mutexes
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/serial/serial_txx9.c')
| -rw-r--r-- | drivers/serial/serial_txx9.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/serial/serial_txx9.c b/drivers/serial/serial_txx9.c index fdd1f1915a42..ee98a867bc6d 100644 --- a/drivers/serial/serial_txx9.c +++ b/drivers/serial/serial_txx9.c @@ -52,6 +52,7 @@ #include <linux/tty_flip.h> #include <linux/serial_core.h> #include <linux/serial.h> +#include <linux/mutex.h> #include <asm/io.h> #include <asm/irq.h> @@ -1018,7 +1019,7 @@ static void serial_txx9_resume_port(int line) uart_resume_port(&serial_txx9_reg, &serial_txx9_ports[line].port); } -static DECLARE_MUTEX(serial_txx9_sem); +static DEFINE_MUTEX(serial_txx9_mutex); /** * serial_txx9_register_port - register a serial port @@ -1037,7 +1038,7 @@ static int __devinit serial_txx9_register_port(struct uart_port *port) struct uart_txx9_port *uart; int ret = -ENOSPC; - down(&serial_txx9_sem); + mutex_lock(&serial_txx9_mutex); for (i = 0; i < UART_NR; i++) { uart = &serial_txx9_ports[i]; if (uart->port.type == PORT_UNKNOWN) @@ -1058,7 +1059,7 @@ static int __devinit serial_txx9_register_port(struct uart_port *port) if (ret == 0) ret = uart->port.line; } - up(&serial_txx9_sem); + mutex_unlock(&serial_txx9_mutex); return ret; } @@ -1073,7 +1074,7 @@ static void __devexit serial_txx9_unregister_port(int line) { struct uart_txx9_port *uart = &serial_txx9_ports[line]; - down(&serial_txx9_sem); + mutex_lock(&serial_txx9_mutex); uart_remove_one_port(&serial_txx9_reg, &uart->port); uart->port.flags = 0; uart->port.type = PORT_UNKNOWN; @@ -1082,7 +1083,7 @@ static void __devexit serial_txx9_unregister_port(int line) uart->port.membase = 0; uart->port.dev = NULL; uart_add_one_port(&serial_txx9_reg, &uart->port); - up(&serial_txx9_sem); + mutex_unlock(&serial_txx9_mutex); } /* |