mfd: Fix sm501 requested region size

We should only request for the MFD used region, not the whole thing.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Tested-by: Paul Mundt <lethal@linux-sh.org>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index dc9ea95c0561..497712fd13ed 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,
-                                            resource_size(sm->io_res), "sm501");
+                                            0x100, "sm501");
 
         if (sm->regs_claim == NULL) {
                 dev_err(&dev->dev, "cannot claim registers\n");
@@ -1644,7 +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,
-                                            resource_size(sm->io_res), "sm501");
+                                            0x100, "sm501");
         if (sm->regs_claim == NULL) {
                 dev_err(&dev->dev, "cannot claim registers\n");
                 err= -EBUSY;