Hi Hans,

Thanks for your review! I'll address the other comments you made.

On Tue, Nov 13, 2018 at 01:24:47PM +0100, Hans Verkuil wrote:
> > +static int csi_probe(struct platform_device *pdev)
> > +{
> > +	struct sun4i_csi *csi;
> > +	struct resource *res;
> > +	int ret;
> > +	int irq;
> > +
> > +	csi = devm_kzalloc(&pdev->dev, sizeof(*csi), GFP_KERNEL);
> 
> devm_kzalloc is not recommended: all devm_ memory is freed when the driver
> is unbound, but a filehandle might still have a reference open.

How would a !devm variant with a kfree in the remove help? We would
still fall in the same case, right?

Thanks!
Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com