The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(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....@samsung.com>
---
drivers/rtc/rtc-at91sam9.c | 19 +++++--------------
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;
}
--
1.7.2.5
--
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