Thread (3 messages) 3 messages, 3 authors, 2012-06-20
STALE5094d

[PATCH 2/2] serial: samsung: Fixed wrong comparison for baudclk_rate

From: Kyoungil Kim <hidden>
Date: 2012-05-20 08:49:31
Also in: linux-samsung-soc, linux-serial
Subsystem: arm/samsung s3c, s5p and exynos arm architectures, the rest, tty layer and serial drivers · Maintainers: Krzysztof Kozlowski, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby

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 <redacted>
Signed-off-by: Kyoungil Kim <redacted>
---
 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 5668538..cefdd2d 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1013,10 +1013,10 @@ 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(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
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