Check the return of clk_set_rate() which could fail if there is error setting the rate. Signed-off-by: Li Zhong <floridsleeves@xxxxxxxxx> --- drivers/tty/serial/8250/8250_bcm7271.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_bcm7271.c b/drivers/tty/serial/8250/8250_bcm7271.c index 8efdc271eb75..9014853d6e35 100644 --- a/drivers/tty/serial/8250/8250_bcm7271.c +++ b/drivers/tty/serial/8250/8250_bcm7271.c @@ -671,7 +671,9 @@ static void init_real_clk_rates(struct device *dev, struct brcmuart_priv *priv) priv->real_rates[x] = clk_get_rate(priv->baud_mux_clk); } } - clk_set_rate(priv->baud_mux_clk, priv->default_mux_rate); + rc = clk_set_rate(priv->baud_mux_clk, priv->default_mux_rate); + if (rc) + dev_err(dev, "Error restoring default BAUD MUX clock\n"); } static void set_clock_mux(struct uart_port *up, struct brcmuart_priv *priv, -- 2.25.1
