3 files changed, 4 insertions, 4 deletions

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 1b90fd56bef1..55da20ccc7a8 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -514,7 +514,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 
         host->io_phys = (dma_addr_t)mem->start;
 
-        host->io_base = ioremap(mem->start, mem->end - mem->start + 1);
+        host->io_base = ioremap(mem->start, resource_size(mem));
         if (host->io_base == NULL) {
                 printk(KERN_ERR "atmel_nand: ioremap failed\n");
                 res = -EIO;
@@ -548,7 +548,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
         if (no_ecc)
                 nand_chip->ecc.mode = NAND_ECC_NONE;
         if (hard_ecc && regs) {
-                host->ecc = ioremap(regs->start, regs->end - regs->start + 1);
+                host->ecc = ioremap(regs->start, resource_size(regs));
                 if (host->ecc == NULL) {
                         printk(KERN_ERR "atmel_nand: ioremap failed\n");
                         res = -EIO;
diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c
index 9ec280738a9a..8c569e454dc5 100644
--- a/drivers/mtd/nand/bcm_umi_nand.c
+++ b/drivers/mtd/nand/bcm_umi_nand.c
@@ -380,7 +380,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
                 return -ENXIO;
 
         /* map physical address */
-        bcm_umi_io_base = ioremap(r->start, r->end - r->start + 1);
+        bcm_umi_io_base = ioremap(r->start, resource_size(r));
 
         if (!bcm_umi_io_base) {
                 printk(KERN_ERR "ioremap to access BCM UMI NAND chip failed\n");
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index 2f7c930872f9..eb1fbac63eb6 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -713,7 +713,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op)
         }
 
         regs_paddr = res.start;
-        regs_size = res.end - res.start + 1;
+        regs_size = resource_size(&res);
 
         if (!devm_request_mem_region(dev, regs_paddr, regs_size, DRV_NAME)) {
                 dev_err(dev, "Error requesting memory region!\n");