aboutsummaryrefslogtreecommitdiff
path: root/drivers/i2c/busses/i2c-viapro.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/i2c/busses/i2c-viapro.c')
-rw-r--r--drivers/i2c/busses/i2c-viapro.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index c9ce77f13c0..661ebc7a711 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -318,6 +318,10 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
unsigned char temp;
int error = -ENODEV;
+ /* driver_data might come from user-space, so check it */
+ if (id->driver_data & 1 || id->driver_data > 0xff)
+ return -EINVAL;
+
/* Determine the address of the SMBus areas */
if (force_addr) {
vt596_smba = force_addr & 0xfff0;
@@ -455,6 +459,7 @@ static struct pci_driver vt596_driver = {
.name = "vt596_smbus",
.id_table = vt596_ids,
.probe = vt596_probe,
+ .dynids.use_driver_data = 1,
};
static int __init i2c_vt596_init(void)