netdev - [PATCH] net: ieee802154: remove unnecessary spi_set

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Message-id: <001901cee983$62dc37b0$2894a710$%han@samsung.com>
Date:	Mon, 25 Nov 2013 11:09:34 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	"'David S. Miller'" <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, linux-zigbee-devel@...ts.sourceforge.net,
	'Alexander Smirnov' <alex.bluesman.smirnov@...il.com>,
	'Dmitry Eremin-Solenikov' <dbaryshkov@...il.com>,
	'Jingoo Han' <jg1.han@...sung.com>,
	'Sascha Herrmann' <sascha@...nvbi.de>,
	'Stefan Schmidt' <stefan@...enfreihafen.org>,
	'Alan Ott' <alan@...nal11.us>
Subject: [PATCH] net: ieee802154: remove unnecessary spi_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/net/ieee802154/at86rf230.c |    2 --
 drivers/net/ieee802154/mrf24j40.c  |    1 -
 2 files changed, 3 deletions(-)

diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 2cbe1c2..ab31544 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -987,7 +987,6 @@ err_gpio_dir:
 err_slp_tr:
 	gpio_free(lp->rstn);
 err_rstn:
-	spi_set_drvdata(spi, NULL);
 	mutex_destroy(&lp->bmux);
 	ieee802154_free_device(lp->dev);
 	return rc;
@@ -1006,7 +1005,6 @@ static int at86rf230_remove(struct spi_device *spi)
 		gpio_free(lp->slp_tr);
 	gpio_free(lp->rstn);
 
-	spi_set_drvdata(spi, NULL);
 	mutex_destroy(&lp->bmux);
 	ieee802154_free_device(lp->dev);
 
diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index c6e46d6..246befa 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -715,7 +715,6 @@ static int mrf24j40_remove(struct spi_device *spi)
 	 * complete? */
 
 	/* Clean up the SPI stuff. */
-	spi_set_drvdata(spi, NULL);
 	kfree(devrec->buf);
 	kfree(devrec);
 	return 0;
-- 
1.7.10.4


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