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authorJingoo Han <jg1.han@samsung.com>2013-07-03 22:06:12 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 23:07:49 (GMT)
commit61cc483a6fbfbda9bcfa91b13cf062c851fec972 (patch)
tree5c16ffb136c5fc4360dfc0d09553b0f1445337f5
parent3d772d34d18d6eeccb6cb39bbac1be932d063b0e (diff)
downloadlinux-61cc483a6fbfbda9bcfa91b13cf062c851fec972.tar.xz
rtc: rtc-at91sam9: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d063100 ("device-core: Ensure drvdata = NULL when no driver is bound"). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/rtc/rtc-at91sam9.c19
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index b60a34c..309b8b3 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -324,16 +324,14 @@ static int at91_rtc_probe(struct platform_device *pdev)
rtc->rtt = devm_ioremap(&pdev->dev, r->start, resource_size(r));
if (!rtc->rtt) {
dev_err(&pdev->dev, "failed to map registers, aborting.\n");
- ret = -ENOMEM;
- goto fail;
+ return -ENOMEM;
}
rtc->gpbr = devm_ioremap(&pdev->dev, r_gpbr->start,
resource_size(r_gpbr));
if (!rtc->gpbr) {
dev_err(&pdev->dev, "failed to map gpbr registers, aborting.\n");
- ret = -ENOMEM;
- goto fail;
+ return -ENOMEM;
}
mr = rtt_readl(rtc, MR);
@@ -350,17 +348,15 @@ static int at91_rtc_probe(struct platform_device *pdev)
rtc->rtcdev = devm_rtc_device_register(&pdev->dev, pdev->name,
&at91_rtc_ops, THIS_MODULE);
- if (IS_ERR(rtc->rtcdev)) {
- ret = PTR_ERR(rtc->rtcdev);
- goto fail;
- }
+ if (IS_ERR(rtc->rtcdev))
+ return PTR_ERR(rtc->rtcdev);
/* register irq handler after we know what name we'll use */
ret = devm_request_irq(&pdev->dev, rtc->irq, at91_rtc_interrupt,
IRQF_SHARED, dev_name(&rtc->rtcdev->dev), rtc);
if (ret) {
dev_dbg(&pdev->dev, "can't share IRQ %d?\n", rtc->irq);
- goto fail;
+ return ret;
}
/* NOTE: sam9260 rev A silicon has a ROM bug which resets the
@@ -374,10 +370,6 @@ static int at91_rtc_probe(struct platform_device *pdev)
dev_name(&rtc->rtcdev->dev));
return 0;
-
-fail:
- platform_set_drvdata(pdev, NULL);
- return ret;
}
/*
@@ -391,7 +383,6 @@ static int at91_rtc_remove(struct platform_device *pdev)
/* disable all interrupts */
rtt_writel(rtc, MR, mr & ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN));
- platform_set_drvdata(pdev, NULL);
return 0;
}