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path: root/drivers/serial/serial_txx9.c
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Diffstat (limited to 'drivers/serial/serial_txx9.c')
-rw-r--r--drivers/serial/serial_txx9.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/serial/serial_txx9.c b/drivers/serial/serial_txx9.c
index f10c86d60b6..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>
@@ -303,17 +304,6 @@ receive_chars(struct uart_txx9_port *up, unsigned int *status, struct pt_regs *r
char flag;
do {
- /* The following is not allowed by the tty layer and
- unsafe. It should be fixed ASAP */
- if (unlikely(tty->flip.count >= TTY_FLIPBUF_SIZE)) {
- if (tty->low_latency) {
- spin_unlock(&up->port.lock);
- tty_flip_buffer_push(tty);
- spin_lock(&up->port.lock);
- }
- /* If this failed then we will throw away the
- bytes but must do so to clear interrupts */
- }
ch = sio_in(up, TXX9_SIRFIFO);
flag = TTY_NORMAL;
up->port.icount.rx++;
@@ -1029,7 +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
@@ -1048,7 +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)
@@ -1069,7 +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;
}
@@ -1084,7 +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;
@@ -1093,7 +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);
}
/*
@@ -1195,7 +1185,7 @@ static int __init serial_txx9_init(void)
serial_txx9_register_ports(&serial_txx9_reg);
#ifdef ENABLE_SERIAL_TXX9_PCI
- ret = pci_module_init(&serial_txx9_pci_driver);
+ ret = pci_register_driver(&serial_txx9_pci_driver);
#endif
}
return ret;