On Wed, Jan 09, 2019 at 03:33:07PM +0800, Yi Zeng wrote:
> If set adapter->retries to minus value from user space via ioctl,
> will make __i2c_transfer and __i2c_smbus_xfer jump the calling to
> adapter->algo->master_xfer and adapter->algo->smbus_xfer that
> registered by the underlying bus drivers, and return value 0 to
> all the callers. The bus driver will never be accessed anymore by
> all users, besides, the users may still get successful return value
> without any error or information log print out.
> 
> If set adapter->timeout to minus value from user space via ioctl,
> will make the retrying loop in __i2c_transfer and __i2c_smbus_xfer
> always break after the the first try, due to the time_after always
> returns true.
> 
> Signed-off-by: Yi Zeng <yiz...@asrmicro.com>

Applied to for-current, thanks!

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