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authorArjan van de Ven <arjan@infradead.org>2006-01-12 18:44:32 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-01-12 18:44:32 +0000
commitf392ecfa12de9a2baf72789b00557bac040d6171 (patch)
treee406fbff12d8b7fa173a23f871d1b3b24473d144 /drivers/serial/serial_txx9.c
parent593195f9b2309693f27b402f34573f7920b82c3e (diff)
[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.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/serial/serial_txx9.c b/drivers/serial/serial_txx9.c
index fdd1f1915a4..ee98a867bc6 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);
}
/*