The code is calculating the resource size wrong because it should be
inclusive of the "res->end" address. In other words, "end - start + 1".
We can just use the resource_size() function to do it correctly.
Fixes: 7dc7967fc39a ("staging: kpc2000: add initial set of Daktronics drivers")
Signed-off-by: Dan Carpenter <[email protected]>
---
drivers/staging/kpc2000/kpc_i2c/i2c_driver.c | 2 +-
drivers/staging/kpc2000/kpc_spi/spi_driver.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/kpc2000/kpc_i2c/i2c_driver.c
b/drivers/staging/kpc2000/kpc_i2c/i2c_driver.c
index 6bb6ad4abe87..1fc30dc687f9 100644
--- a/drivers/staging/kpc2000/kpc_i2c/i2c_driver.c
+++ b/drivers/staging/kpc2000/kpc_i2c/i2c_driver.c
@@ -632,7 +632,7 @@ int pi2c_probe(struct platform_device *pldev)
priv->adapter.algo = &smbus_algorithm;
res = platform_get_resource(pldev, IORESOURCE_MEM, 0);
- priv->smba = (unsigned long)ioremap_nocache(res->start, res->end -
res->start);
+ priv->smba = (unsigned long)ioremap_nocache(res->start,
resource_size(res));
priv->pldev = pldev;
pldev->dev.platform_data = priv;
diff --git a/drivers/staging/kpc2000/kpc_spi/spi_driver.c
b/drivers/staging/kpc2000/kpc_spi/spi_driver.c
index b38149b752fb..e568dec04800 100644
--- a/drivers/staging/kpc2000/kpc_spi/spi_driver.c
+++ b/drivers/staging/kpc2000/kpc_spi/spi_driver.c
@@ -452,7 +452,7 @@ kp_spi_probe(struct platform_device *pldev)
goto free_master;
}
- kpspi->phys = (unsigned long)ioremap_nocache(r->start, r->end - r->start);
+ kpspi->phys = (unsigned long)ioremap_nocache(r->start, resource_size(r));
kpspi->base = (u64 __iomem *)kpspi->phys;
status = spi_register_master(master);
--
2.18.0
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