diff options
| author | Wan ZongShun <mcuos.com@gmail.com> | 2010-06-01 15:16:20 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-06-03 19:00:16 +0100 |
| commit | c0da5500e9962e23ee8bb0bce9cb4307d44c0ae7 (patch) | |
| tree | 8eb69bd02ec962134f6e358d08a2695affa76d75 /sound/soc/au1x/psc-ac97.c | |
| parent | 5ef650ae5c94ee4d593169b82b6c306093360765 (diff) | |
ASoC: use resource_size for au1x
Use the resource_size function instead of manually calculating the
resource size.This patch can reduce the chance of introducing off-by-one
errors.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Manuel Lauss <manuel.lauss@googlemail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/au1x/psc-ac97.c')
| -rw-r--r-- | sound/soc/au1x/psc-ac97.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/sound/soc/au1x/psc-ac97.c b/sound/soc/au1x/psc-ac97.c index a61ccd2d505f..d14a5a91a465 100644 --- a/sound/soc/au1x/psc-ac97.c +++ b/sound/soc/au1x/psc-ac97.c @@ -375,12 +375,10 @@ static int __devinit au1xpsc_ac97_drvprobe(struct platform_device *pdev) } ret = -EBUSY; - wd->ioarea = request_mem_region(r->start, r->end - r->start + 1, - "au1xpsc_ac97"); - if (!wd->ioarea) + if (!request_mem_region(r->start, resource_size(r), pdev->name)) goto out0; - wd->mmio = ioremap(r->start, 0xffff); + wd->mmio = ioremap(r->start, resource_size(r)); if (!wd->mmio) goto out1; @@ -410,8 +408,7 @@ static int __devinit au1xpsc_ac97_drvprobe(struct platform_device *pdev) snd_soc_unregister_dai(&au1xpsc_ac97_dai); out1: - release_resource(wd->ioarea); - kfree(wd->ioarea); + release_mem_region(r->start, resource_size(r)); out0: kfree(wd); return ret; @@ -420,6 +417,7 @@ out0: static int __devexit au1xpsc_ac97_drvremove(struct platform_device *pdev) { struct au1xpsc_audio_data *wd = platform_get_drvdata(pdev); + struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (wd->dmapd) au1xpsc_pcm_destroy(wd->dmapd); @@ -433,8 +431,7 @@ static int __devexit au1xpsc_ac97_drvremove(struct platform_device *pdev) au_sync(); iounmap(wd->mmio); - release_resource(wd->ioarea); - kfree(wd->ioarea); + release_mem_region(r->start, resource_size(r)); kfree(wd); au1xpsc_ac97_workdata = NULL; /* MDEV */ |