diff options
| author | Alessandro Zummo <alessandro.zummo@towertech.it> | 2009-12-15 16:45:53 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:19:58 -0800 |
| commit | b74d2caa64f8e542e9c6716ae6ed4a60d681ea9f (patch) | |
| tree | 3d34fb87043b4a800bd35455725ba81638541cc3 /drivers/rtc/rtc-m48t35.c | |
| parent | d1b2efa83fbf7b33919238fa29ef6ab935820103 (diff) | |
| download | lwn-b74d2caa64f8e542e9c6716ae6ed4a60d681ea9f.tar.gz lwn-b74d2caa64f8e542e9c6716ae6ed4a60d681ea9f.zip | |
rtc: fix driver data issues in several rtc drivers
Herton Ronaldo Krzesinski recently raised up, and fixed, an issue with the
rtc_cmos driver, which was referring to an inconsistent driver data.
This patch ensures that driver data registration happens before
rtc_device_register().
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Thomas Hommel <thomas.hommel@gefanuc.com>
Acked-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Andrew Sharp <andy.sharp@onstor.com>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Alexander Bigga <ab@mycable.de>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Mark Zhan <rongkai.zhan@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-m48t35.c')
| -rw-r--r-- | drivers/rtc/rtc-m48t35.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-m48t35.c b/drivers/rtc/rtc-m48t35.c index 0b2197559940..8cb5b8959e5b 100644 --- a/drivers/rtc/rtc-m48t35.c +++ b/drivers/rtc/rtc-m48t35.c @@ -142,7 +142,6 @@ static const struct rtc_class_ops m48t35_ops = { static int __devinit m48t35_probe(struct platform_device *pdev) { - struct rtc_device *rtc; struct resource *res; struct m48t35_priv *priv; int ret = 0; @@ -171,20 +170,21 @@ static int __devinit m48t35_probe(struct platform_device *pdev) ret = -ENOMEM; goto out; } + spin_lock_init(&priv->lock); - rtc = rtc_device_register("m48t35", &pdev->dev, + + platform_set_drvdata(pdev, priv); + + priv->rtc = rtc_device_register("m48t35", &pdev->dev, &m48t35_ops, THIS_MODULE); - if (IS_ERR(rtc)) { - ret = PTR_ERR(rtc); + if (IS_ERR(priv->rtc)) { + ret = PTR_ERR(priv->rtc); goto out; } - priv->rtc = rtc; - platform_set_drvdata(pdev, priv); + return 0; out: - if (priv->rtc) - rtc_device_unregister(priv->rtc); if (priv->reg) iounmap(priv->reg); if (priv->baseaddr) |