V4L/DVB (13784): [Mantis] Use PCI API instead of hardcoded length

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/media/dvb/mantis/mantis_pci.c b/drivers/media/dvb/mantis/mantis_pci.c
index a068ffb3253..d3a62b18590 100644
--- a/drivers/media/dvb/mantis/mantis_pci.c
+++ b/drivers/media/dvb/mantis/mantis_pci.c
@@ -169,7 +169,10 @@ static int __devinit mantis_pci_probe(struct pci_dev *pdev,
                 goto err0;
         }
 
-        if ((mantis->mantis_mmio = ioremap(mantis->mantis_addr, 0x1000)) == NULL) {
+        mantis->mantis_mmio = ioremap(pci_resource_start(pdev, 0),
+                                      pci_resource_len(pdev, 0));
+
+        if (!mantis->mantis_mmio) {
                 dprintk(verbose, MANTIS_ERROR, 1, "IO remap failed");
                 ret = -ENODEV;
                 goto err1;