[PATCH 4/8] rtc: rtc-mpc5121: use devm_*() functions

Jingoo Han
2013-05-21T06:17:37Z

Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
drivers/rtc/rtc-mpc5121.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c
index 213006b..4c02497 100644
--- a/drivers/rtc/rtc-mpc5121.c
+++ b/drivers/rtc/rtc-mpc5121.c
@@ -312,15 +312,14 @@ static int mpc5121_rtc_probe(struct platform_device *op)
struct mpc5121_rtc_data *rtc;
int err = 0;

- rtc = kzalloc(sizeof(*rtc), GFP_KERNEL);
+ rtc = devm_kzalloc(&op->dev, sizeof(*rtc), GFP_KERNEL);
if (!rtc)
return -ENOMEM;

rtc->regs = of_iomap(op->dev.of_node, 0);
if (!rtc->regs) {
dev_err(&op->dev, "%s: couldn't map io space\n", __func__);
- err = -ENOSYS;
- goto out_free;
+ return -ENOSYS;
}

device_init_wakeup(&op->dev, 1);
@@ -354,10 +353,10 @@ static int mpc5121_rtc_probe(struct platform_device *op)
out_be32(&rtc->regs->keep_alive, ka);
}

- rtc->rtc = rtc_device_register("mpc5121-rtc", &op->dev,
+ rtc->rtc = devm_rtc_device_register(&op->dev, "mpc5121-rtc",
&mpc5121_rtc_ops, THIS_MODULE);
} else {
- rtc->rtc = rtc_device_register("mpc5200-rtc", &op->dev,
+ rtc->rtc = devm_rtc_device_register(&op->dev, "mpc5200-rtc",
&mpc5200_rtc_ops, THIS_MODULE);
}

@@ -377,8 +376,6 @@ out_dispose2:
out_dispose:
irq_dispose_mapping(rtc->irq);
iounmap(rtc->regs);
-out_free:
- kfree(rtc);

return err;
}
@@ -392,14 +389,11 @@ static int mpc5121_rtc_remove(struct platform_device *op)
out_8(&regs->alm_enable, 0);
out_8(&regs->int_enable, in_8(&regs->int_enable) & ~0x1);

- rtc_device_unregister(rtc->rtc);
iounmap(rtc->regs);
free_irq(rtc->irq, &op->dev);
free_irq(rtc->irq_periodic, &op->dev);
irq_dispose_mapping(rtc->irq);
irq_dispose_mapping(rtc->irq_periodic);
- dev_set_drvdata(&op->dev, NULL);
- kfree(rtc);

return 0;
}
--
1.7.10.4