diff options
Diffstat (limited to 'drivers/base/driver.c')
| -rw-r--r-- | drivers/base/driver.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/base/driver.c b/drivers/base/driver.c index e0125a1b92..81b35031a1 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c @@ -318,6 +318,22 @@ void __iomem *dev_request_mem_region_by_name(struct device_d *dev, const char *n } EXPORT_SYMBOL(dev_request_mem_region_by_name); +void __iomem *dev_request_mem_region_err_null(struct device_d *dev, int num) +{ + struct resource *res; + + res = dev_get_resource(dev, IORESOURCE_MEM, num); + if (IS_ERR(res)) + return NULL; + + res = request_iomem_region(dev_name(dev), res->start, res->end); + if (IS_ERR(res)) + return NULL; + + return (void __force __iomem *)res->start; +} +EXPORT_SYMBOL(dev_request_mem_region_err_null); + void __iomem *dev_request_mem_region(struct device_d *dev, int num) { struct resource *res; @@ -330,7 +346,7 @@ void __iomem *dev_request_mem_region(struct device_d *dev, int num) if (IS_ERR(res)) return ERR_CAST(res); - return (void __force __iomem *)res->start; + return IOMEM(res->start); } EXPORT_SYMBOL(dev_request_mem_region); |