linux-kernel - [PATCH] rtc: ds1305: use to_spi_device and kobj_to

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Message-Id: <69d9b6de4c0a2c10544f9982bce92d3132bf6d21.1450875144.git.geliangtang@163.com>
Date:	Wed, 23 Dec 2015 20:54:33 +0800
From:	Geliang Tang <geliangtang@....com>
To:	Alessandro Zummo <a.zummo@...ertech.it>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Cc:	Geliang Tang <geliangtang@....com>, rtc-linux@...glegroups.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH] rtc: ds1305: use to_spi_device and kobj_to_dev

For better readability, use to_spi_device() and kobj_to_dev() instead
of container_of().

Signed-off-by: Geliang Tang <geliangtang@....com>
---
 drivers/rtc/rtc-ds1305.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c
index f39691e..8e41c46 100644
--- a/drivers/rtc/rtc-ds1305.c
+++ b/drivers/rtc/rtc-ds1305.c
@@ -532,7 +532,7 @@ ds1305_nvram_read(struct file *filp, struct kobject *kobj,
 	struct spi_transfer	x[2];
 	int			status;
 
-	spi = container_of(kobj, struct spi_device, dev.kobj);
+	spi = to_spi_device(kobj_to_dev(kobj));
 
 	addr = DS1305_NVRAM + off;
 	msg_init(&m, x, &addr, count, NULL, buf);
@@ -554,7 +554,7 @@ ds1305_nvram_write(struct file *filp, struct kobject *kobj,
 	struct spi_transfer	x[2];
 	int			status;
 
-	spi = container_of(kobj, struct spi_device, dev.kobj);
+	spi = to_spi_device(kobj_to_dev(kobj));
 
 	addr = (DS1305_WRITE | DS1305_NVRAM) + off;
 	msg_init(&m, x, &addr, count, buf, NULL);
-- 
2.5.0


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