diff options
author | Julia Lawall <Julia.Lawall@lip6.fr> | 2013-08-14 13:11:21 +0400 |
---|---|---|
committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2015-06-25 02:13:40 +0300 |
commit | e044253b3b4fb5a8b275202511a4d9765ac0a982 (patch) | |
tree | 9e78c4ac9b33cbf7ade90a34bc3b26de011e8a75 /drivers/rtc/rtc-ds1216.c | |
parent | 538330ccb93849530f5617d1fa870237496caa60 (diff) | |
download | linux-e044253b3b4fb5a8b275202511a4d9765ac0a982.tar.xz |
rtc: simplify use of devm_ioremap_resource
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
[viresh.kumar@linaro.org: acked rtc-spear]
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc/rtc-ds1216.c')
-rw-r--r-- | drivers/rtc/rtc-ds1216.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-ds1216.c b/drivers/rtc/rtc-ds1216.c index d16f550897b8..12dbd70859ae 100644 --- a/drivers/rtc/rtc-ds1216.c +++ b/drivers/rtc/rtc-ds1216.c @@ -144,15 +144,13 @@ static int __init ds1216_rtc_probe(struct platform_device *pdev) struct ds1216_priv *priv; u8 dummy[8]; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; platform_set_drvdata(pdev, priv); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); priv->ioaddr = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(priv->ioaddr)) return PTR_ERR(priv->ioaddr); |