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>
diff --git a/drivers/char/hw_random/nomadik-rng.c b/drivers/char/hw_random/nomadik-rng.c
index 232b87f..bc904bb 100644
--- a/drivers/char/hw_random/nomadik-rng.c
+++ b/drivers/char/hw_random/nomadik-rng.c
@@ -44,7 +44,7 @@
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 @@
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;
}