diff options
author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-04-30 13:33:59 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-30 15:19:04 +0300 |
commit | f998a1180e14d0a10d2ffeccec25779ace879c2a (patch) | |
tree | 986c349f59e3259c109f790d10b67cde5866be77 /drivers/staging | |
parent | d687bdefba270c11df0234b3285cd50d60de284b (diff) | |
download | linux-f998a1180e14d0a10d2ffeccec25779ace879c2a.tar.xz |
staging: kpc2000: fix resource size calculation
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 <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r-- | drivers/staging/kpc2000/kpc_i2c/i2c_driver.c | 2 | ||||
-rw-r--r-- | 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 c0999e080577..074a578153d0 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); |