[PATCH] serial/uartlite: Only enable port if request_port succeeded

The uartlite driver used to always enable the port even if request_port
failed causing havoc. This patch fixes it.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/serial/uartlite.c b/drivers/serial/uartlite.c
index 92eba89..db8607e 100644 (file)
--- a/drivers/serial/uartlite.c
+++ b/drivers/serial/uartlite.c
@@ -278,8 +278,8 @@ static int ulite_request_port(struct uart_port *port)
 
 static void ulite_config_port(struct uart_port *port, int flags)
 {
-       ulite_request_port(port);
-       port->type = PORT_UARTLITE;
+       if (!ulite_request_port(port))
+               port->type = PORT_UARTLITE;
 }
 
 static int ulite_verify_port(struct uart_port *port, struct serial_struct *ser)