Messages in this thread Patch in this message | | | Subject | [PATCH] sm501.c: use resource_size() | Date | Fri, 11 Dec 2009 18:55:41 -0500 | From | "H Hartley Sweeten" <> |
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The requested memory region is smaller than the actual ioremap(). Use resource_size() to get the correct size.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Samuel Ortiz <sameo@linux.intel.com>
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diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index 0cc5eef..dc9ea95 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -1430,7 +1430,7 @@ static int __devinit sm501_plat_probe(struct platform_device *dev) } sm->regs_claim = request_mem_region(sm->io_res->start, - 0x100, "sm501"); + resource_size(sm->io_res), "sm501"); if (sm->regs_claim == NULL) { dev_err(&dev->dev, "cannot claim registers\n"); @@ -1440,8 +1440,7 @@ static int __devinit sm501_plat_probe(struct platform_device *dev) platform_set_drvdata(dev, sm); - sm->regs = ioremap(sm->io_res->start, - (sm->io_res->end - sm->io_res->start) - 1); + sm->regs = ioremap(sm->io_res->start, resource_size(sm->io_res)); if (sm->regs == NULL) { dev_err(&dev->dev, "cannot remap registers\n"); @@ -1645,7 +1644,7 @@ static int __devinit sm501_pci_probe(struct pci_dev *dev, sm->mem_res = &dev->resource[0]; sm->regs_claim = request_mem_region(sm->io_res->start, - 0x100, "sm501"); + resource_size(sm->io_res), "sm501"); if (sm->regs_claim == NULL) { dev_err(&dev->dev, "cannot claim registers\n"); err= -EBUSY;
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