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path: root/drivers/char/hw_random/omap-rng.c
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Diffstat (limited to 'drivers/char/hw_random/omap-rng.c')
-rw-r--r--drivers/char/hw_random/omap-rng.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 06aad08..2cc755a 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -91,7 +91,7 @@ static struct hwrng omap_rng_ops = {
static int __devinit omap_rng_probe(struct platform_device *pdev)
{
- struct resource *res, *mem;
+ struct resource *res;
int ret;
/*
@@ -116,14 +116,12 @@ static int __devinit omap_rng_probe(struct platform_device *pdev)
if (!res)
return -ENOENT;
- mem = request_mem_region(res->start, resource_size(res),
- pdev->name);
- if (mem == NULL) {
+ if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
ret = -EBUSY;
goto err_region;
}
- dev_set_drvdata(&pdev->dev, mem);
+ dev_set_drvdata(&pdev->dev, res);
rng_base = ioremap(res->start, resource_size(res));
if (!rng_base) {
ret = -ENOMEM;
@@ -146,7 +144,7 @@ err_register:
iounmap(rng_base);
rng_base = NULL;
err_ioremap:
- release_resource(mem);
+ release_mem_region(res->start, resource_size(res));
err_region:
if (cpu_is_omap24xx()) {
clk_disable(rng_ick);
@@ -157,7 +155,7 @@ err_region:
static int __exit omap_rng_remove(struct platform_device *pdev)
{
- struct resource *mem = dev_get_drvdata(&pdev->dev);
+ struct resource *res = dev_get_drvdata(&pdev->dev);
hwrng_unregister(&omap_rng_ops);
@@ -170,7 +168,7 @@ static int __exit omap_rng_remove(struct platform_device *pdev)
clk_put(rng_ick);
}
- release_resource(mem);
+ release_mem_region(res->start, resource_size(res));
rng_base = NULL;
return 0;