[PATCH] tty: serial: cpm_uart: make use of for_each_node_by_type()

From: Dmitry Torokhov
Date: Wed Feb 01 2017 - 18:20:20 EST


Instead of open-coding loop with of_find_node_by_type(), let's use canned
macro.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
---
drivers/tty/serial/cpm_uart/cpm_uart_core.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index d3e3d42c0c12..f6bcc19c99d5 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -1302,7 +1302,7 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
struct uart_cpm_port *pinfo;
struct uart_port *port;

- struct device_node *np = NULL;
+ struct device_node *np;
int i = 0;

if (co->index >= UART_NR) {
@@ -1311,17 +1311,19 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
return -ENODEV;
}

- do {
- np = of_find_node_by_type(np, "serial");
- if (!np)
- return -ENODEV;
-
+ for_each_node_by_type(np, "serial") {
if (!of_device_is_compatible(np, "fsl,cpm1-smc-uart") &&
!of_device_is_compatible(np, "fsl,cpm1-scc-uart") &&
!of_device_is_compatible(np, "fsl,cpm2-smc-uart") &&
!of_device_is_compatible(np, "fsl,cpm2-scc-uart"))
- i--;
- } while (i++ != co->index);
+ continue;
+
+ if (i++ == co->index)
+ break;
+ }
+
+ if (!np)
+ return -ENODEV;

pinfo = &cpm_uart_ports[co->index];

--
2.11.0.483.g087da7b7c-goog


--
Dmitry