The kpc_i2c driver attempts to map its I/O space without verifying whether or not the result of platform_get_resource() is NULL. Make the driver check that platform_get_resource did not return NULL before attempting to use the value returned to map an I/O space. Signed-off-by: Geordan Neukum <gneukum1@xxxxxxxxx> --- drivers/staging/kpc2000/kpc2000_i2c.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/kpc2000/kpc2000_i2c.c b/drivers/staging/kpc2000/kpc2000_i2c.c index e4bbb91af972..452052bf9476 100644 --- a/drivers/staging/kpc2000/kpc2000_i2c.c +++ b/drivers/staging/kpc2000/kpc2000_i2c.c @@ -587,6 +587,9 @@ static int pi2c_probe(struct platform_device *pldev) priv->adapter.algo = &smbus_algorithm; res = platform_get_resource(pldev, IORESOURCE_MEM, 0); + if (!res) + return -ENXIO; + priv->smba = (unsigned long)ioremap_nocache(res->start, resource_size(res)); platform_set_drvdata(pldev, priv); -- 2.21.0 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
