Blackfin Serial Driver: Fix bug - should suspend/resume/remove all uart ports.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 4a023c65e9f4f659b9f9cbc86eb2875f36ad6bab..04eeef05e93cbdfbd3618108192cb61e1ce09719 100644 (file)
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -1100,20 +1100,26 @@ static struct uart_driver bfin_serial_reg = {
 
 static int bfin_serial_suspend(struct platform_device *dev, pm_message_t state)
 {
-       struct bfin_serial_port *uart = platform_get_drvdata(dev);
+       int i;
 
-       if (uart)
-               uart_suspend_port(&bfin_serial_reg, &uart->port);
+       for (i = 0; i < nr_ports; i++) {
+               if (bfin_serial_ports[i].port.dev != &dev->dev)
+                       continue;
+               uart_suspend_port(&bfin_serial_reg, &bfin_serial_ports[i].port);
+       }
 
        return 0;
 }
 
 static int bfin_serial_resume(struct platform_device *dev)
 {
-       struct bfin_serial_port *uart = platform_get_drvdata(dev);
+       int i;
 
-       if (uart)
-               uart_resume_port(&bfin_serial_reg, &uart->port);
+       for (i = 0; i < nr_ports; i++) {
+               if (bfin_serial_ports[i].port.dev != &dev->dev)
+                       continue;
+               uart_resume_port(&bfin_serial_reg, &bfin_serial_ports[i].port);
+       }
 
        return 0;
 }
@@ -1133,27 +1139,26 @@ static int bfin_serial_probe(struct platform_device *dev)
                                continue;
                        bfin_serial_ports[i].port.dev = &dev->dev;
                        uart_add_one_port(&bfin_serial_reg, &bfin_serial_ports[i].port);
-                       platform_set_drvdata(dev, &bfin_serial_ports[i]);
                }
        }
 
        return 0;
 }
 
-static int bfin_serial_remove(struct platform_device *pdev)
+static int bfin_serial_remove(struct platform_device *dev)
 {
-       struct bfin_serial_port *uart = platform_get_drvdata(pdev);
-
+       int i;
 
+       for (i = 0; i < nr_ports; i++) {
+               if (bfin_serial_ports[i].port.dev != &dev->dev)
+                       continue;
+               uart_remove_one_port(&bfin_serial_reg, &bfin_serial_ports[i].port);
+               bfin_serial_ports[i].port.dev = NULL;
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
-       gpio_free(uart->cts_pin);
-       gpio_free(uart->rts_pin);
+               gpio_free(bfin_serial_ports[i].cts_pin);
+               gpio_free(bfin_serial_ports[i].rts_pin);
 #endif
-
-       platform_set_drvdata(pdev, NULL);
-
-       if (uart)
-               uart_remove_one_port(&bfin_serial_reg, &uart->port);
+       }
 
        return 0;
 }