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authorJingoo Han <jg1.han@samsung.com>2014-02-27 14:06:31 +0900
committerHerbert Xu <herbert@gondor.apana.org.au>2014-03-10 20:13:37 +0800
commit1655c24095da0b13bbd7a80b25948b19f6efdb37 (patch)
tree2243b06c34d198bd1f0d6a4cbff0f7a95a05b28a /drivers/char/hw_random
parent0c0aa8446433849f19761ebb7cd2f58fde387a04 (diff)
hwrng: nomadik - Use devm_*() functions
Use devm_*() functions to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/char/hw_random')
-rw-r--r--drivers/char/hw_random/nomadik-rng.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/char/hw_random/nomadik-rng.c b/drivers/char/hw_random/nomadik-rng.c
index 232b87fb5fc9..bc904bb3f8a2 100644
--- a/drivers/char/hw_random/nomadik-rng.c
+++ b/drivers/char/hw_random/nomadik-rng.c
@@ -44,7 +44,7 @@ static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id)
void __iomem *base;
int ret;
- rng_clk = clk_get(&dev->dev, NULL);
+ rng_clk = devm_clk_get(&dev->dev, NULL);
if (IS_ERR(rng_clk)) {
dev_err(&dev->dev, "could not get rng clock\n");
ret = PTR_ERR(rng_clk);
@@ -57,33 +57,28 @@ static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id)
if (ret)
goto out_clk;
ret = -ENOMEM;
- base = ioremap(dev->res.start, resource_size(&dev->res));
+ base = devm_ioremap(&dev->dev, dev->res.start,
+ resource_size(&dev->res));
if (!base)
goto out_release;
nmk_rng.priv = (unsigned long)base;
ret = hwrng_register(&nmk_rng);
if (ret)
- goto out_unmap;
+ goto out_release;
return 0;
-out_unmap:
- iounmap(base);
out_release:
amba_release_regions(dev);
out_clk:
clk_disable(rng_clk);
- clk_put(rng_clk);
return ret;
}
static int nmk_rng_remove(struct amba_device *dev)
{
- void __iomem *base = (void __iomem *)nmk_rng.priv;
hwrng_unregister(&nmk_rng);
- iounmap(base);
amba_release_regions(dev);
clk_disable(rng_clk);
- clk_put(rng_clk);
return 0;
}