Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq

[sfrench/cifs-2.6.git] / drivers / serial / amba-pl010.c

diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 4213fabc62bf864a033aca5ff1c5b120b830cf57..f69bd097166e96a1956f2c5394ce91da82eaa7cb 100644 (file)
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -129,6 +129,8 @@ static void pl010_rx_chars(struct uart_port *port)
                 */
                rsr = readb(port->membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
                if (unlikely(rsr & UART01x_RSR_ANY)) {
+                       writel(0, port->membase + UART01x_ECR);
+
                        if (rsr & UART01x_RSR_BE) {
                                rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE);
                                port->icount.brk++;
@@ -343,8 +345,8 @@ static void pl010_shutdown(struct uart_port *port)
 }
 
 static void
-pl010_set_termios(struct uart_port *port, struct termios *termios,
-                    struct termios *old)
+pl010_set_termios(struct uart_port *port, struct ktermios *termios,
+                    struct ktermios *old)
 {
        unsigned int lcr_h, old_cr;
        unsigned long flags;
@@ -587,6 +589,8 @@ static int __init pl010_console_setup(struct console *co, char *options)
         */
        if (co->index >= UART_NR)
                co->index = 0;
+       if (!amba_ports[co->index])
+               return -ENODEV;
        port = &amba_ports[co->index]->port;
 
        if (options)