diff options
Diffstat (limited to 'drivers/i2c/i2c-dev.c')
| -rw-r--r-- | drivers/i2c/i2c-dev.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c index 1aca742fde4a..3f7b9af11137 100644 --- a/drivers/i2c/i2c-dev.c +++ b/drivers/i2c/i2c-dev.c @@ -52,7 +52,7 @@ struct i2c_dev { struct cdev cdev; }; -#define I2C_MINORS MINORMASK +#define I2C_MINORS (MINORMASK + 1) static LIST_HEAD(i2c_dev_list); static DEFINE_SPINLOCK(i2c_dev_list_lock); @@ -470,9 +470,15 @@ static long i2cdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) data_arg.data); } case I2C_RETRIES: + if (arg > INT_MAX) + return -EINVAL; + client->adapter->retries = arg; break; case I2C_TIMEOUT: + if (arg > INT_MAX) + return -EINVAL; + /* For historical reasons, user-space sets the timeout * value in units of 10 ms. */ |