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serial: atmel: Check result of clk_get() 

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Andrey Smirnov 2017-03-08 14:08:59 -08:00 committed by Sascha Hauer
parent 3494084017
commit 6dc7545135
1 changed files with 5 additions and 0 deletions
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5
drivers/serial/atmel.c
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@ -403,6 +403,11 @@ static int atmel_serial_init_port(struct console_device *cdev)
return -ENOENT;
uart->clk = clk_get(dev, "usart");
if (IS_ERR(uart->clk)) {
dev_err(dev, "Failed to get 'usart' clock\n");
return PTR_ERR(uart->clk);
}
clk_enable(uart->clk);
uart->uartclk = clk_get_rate(uart->clk);