From mboxrd@z Thu Jan 1 00:00:00 1970 From: ki0351.kim@samsung.com (Kyoungil Kim) Date: Tue, 15 May 2012 19:13:28 +0900 Subject: [PATCH] serial: samsung: Fixed wrong comparison for baudclk_rate Message-ID: <000101cd3283$5f58eba0$1e0ac2e0$%kim@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org port->baudclk_rate should be compared to the rate of port->baudclk, because port->baudclk_rate was assigned as the rate of port->baudclk previously. So to check that the current baudclk rate is same as previous rate, the target of comparison sholud be the rate of port->baudclk. Signed-off-by: Jun-Ho, Yoon Signed-off-by: Kyoungil Kim --- drivers/tty/serial/samsung.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index d8b0aee..c4867ea 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1014,10 +1014,10 @@ static int s3c24xx_serial_cpufreq_transition(struct notifier_block *nb, * a disturbance in the clock-rate over the change. */ - if (IS_ERR(port->clk)) + if (IS_ERR_OR_NULL(port->baudclk)) goto exit; - if (port->baudclk_rate == clk_get_rate(port->clk)) + if (port->baudclk_rate == clk_get_rate(port->baudclk)) goto exit; if (val == CPUFREQ_PRECHANGE) { -- 1.7.1