Re: [PATCH v2] i2c: don't pass 0 nmsgs to i2c_transfer

[Wolfram Sang]

> -		if (rdwr_arg.nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
> +		if (!rdwr_arg.nmsgs || rdwr_arg.nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
>  			return -EINVAL;

Shouldn't we check the msgs pointer as well while we are here? Like in
the non-compat IOCTL code:

443  if (!rdwr_arg.msgs || rdwr_arg.nmsgs == 0)
444          return -EINVAL;

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