Re: [PATCH] media: cx231xx: fix devres lifetime

[Johan Hovold]

On Fri, Mar 27, 2026 at 12:08:24PM +0100, Greg Kroah-Hartman wrote:
> On Fri, Mar 27, 2026 at 11:43:55AM +0100, Johan Hovold wrote:
> > USB drivers bind to USB interfaces and any device managed resources
> > should have their lifetime tied to the interface rather than parent USB
> > device. This avoids issues like memory leaks when drivers are unbound
> > without their devices being physically disconnected (e.g. on probe
> > deferral or configuration changes).
> > 
> > Fix the driver state lifetime so that it is released on driver unbind.
> 
> Wow, I bet we have a lot of these now, did you find this with a script
> or something that you can run over the whole tree?

I spotted one driver that got this wrong while fixing another bug and
grepped for similar issues tree wide.

I think I got most of them fixed now, but I'll do another pass in case
my grep patterns were too restrictive (e.g. I think they were limited to
probe functions).

Johan