The kpc2000 driver does not verify whether or not mapping the I/O space succeeded during probe time. Make the driver verify that the mapping operation was successful before potentially using that area in the future. Signed-off-by: Geordan Neukum <gneukum1@xxxxxxxxx> --- drivers/staging/kpc2000/kpc2000_i2c.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/kpc2000/kpc2000_i2c.c b/drivers/staging/kpc2000/kpc2000_i2c.c index 452052bf9476..51e91653e183 100644 --- a/drivers/staging/kpc2000/kpc2000_i2c.c +++ b/drivers/staging/kpc2000/kpc2000_i2c.c @@ -591,6 +591,8 @@ static int pi2c_probe(struct platform_device *pldev) return -ENXIO; priv->smba = (unsigned long)ioremap_nocache(res->start, resource_size(res)); + if (!priv->smba) + return -ENOMEM; platform_set_drvdata(pldev, priv); -- 2.21.0 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
