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[ARM] pxa: use resource_size() in pwm.c 

Use resource_size for {request/release}_mem_region and ioremap.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
H Hartley Sweeten 2009-11-23 12:24:32 -05:00 committed by Eric Miao
parent da2c3f0ead
commit 1692231cfd
1 changed files with 4 additions and 4 deletions
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8
arch/arm/plat-pxa/pwm.c
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@ -204,14 +204,14 @@ static int __devinit pwm_probe(struct platform_device *pdev)
goto err_free_clk; goto err_free_clk;
} }
r = request_mem_region(r->start, r->end - r->start + 1, pdev->name); r = request_mem_region(r->start, resource_size(r), pdev->name);
if (r == NULL) { if (r == NULL) {
dev_err(&pdev->dev, "failed to request memory resource\n"); dev_err(&pdev->dev, "failed to request memory resource\n");
ret = -EBUSY; ret = -EBUSY;
goto err_free_clk; goto err_free_clk;
} }
pwm->mmio_base = ioremap(r->start, r->end - r->start + 1); pwm->mmio_base = ioremap(r->start, resource_size(r));
if (pwm->mmio_base == NULL) { if (pwm->mmio_base == NULL) {
dev_err(&pdev->dev, "failed to ioremap() registers\n"); dev_err(&pdev->dev, "failed to ioremap() registers\n");
ret = -ENODEV; ret = -ENODEV;
@ -241,7 +241,7 @@ static int __devinit pwm_probe(struct platform_device *pdev)
return 0; return 0;
err_free_mem: err_free_mem:
release_mem_region(r->start, r->end - r->start + 1); release_mem_region(r->start, resource_size(r));
err_free_clk: err_free_clk:
clk_put(pwm->clk); clk_put(pwm->clk);
err_free: err_free:
@ -271,7 +271,7 @@ static int __devexit pwm_remove(struct platform_device *pdev)
iounmap(pwm->mmio_base); iounmap(pwm->mmio_base);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0); r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(r->start, r->end - r->start + 1); release_mem_region(r->start, resource_size(r));
clk_put(pwm->clk); clk_put(pwm->clk);
kfree(pwm); kfree(pwm);