On Thu, Sep 17, 2020 at 01:33:43PM +0300, Sakari Ailus wrote:
> > +static int connect_supported_devices(void)
> > +{
> > + struct acpi_device *adev;
> > + struct device *dev;
> > + struct sensor_bios_data ssdb;
> > + struct sensor *sensor;
> > + struct property_entry *sensor_props;
> > + struct property_entry *cio2_props;
> > + struct fwnode_handle *fwnode;
> > + struct software_node *nodes;
> > + struct v4l2_subdev *sd;
> > + int i, ret;
>
> unsigned int i
>
Why?
For list iterators then "int i;" is best... For sizes then unsigned is
sometimes best. Or if it's part of the hardware spec or network spec
unsigned is best. Otherwise unsigned variables cause a ton of bugs.
They're not as intuitive as signed variables. Imagine if there is an
error in this loop and you want to unwind. With a signed variable you
can do:
while (--i >= 0)
cleanup(&bridge.sensors[i]);
There are very few times where raising the type maximum from 2 billion
to 4 billion fixes anything.
regards,
dan carpenter
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