Re: [PATCH] component: try_module_get() to prevent unloading while in use

[Greg KH]

On Mon, Jul 25, 2022 at 05:08:59PM +0100, Richard Fitzgerald wrote:
> Call try_module_get() on a component before attempting to call its
> bind() function, to ensure that a loadable module cannot be
> unloaded while we are executing its bind().

How can bind be called while the module is unloaded?

> If the bind is successful the module_put() is called only after it
> has been unbound. This ensures that the module cannot be unloaded
> while it is in use as an aggregate device.

That's almost never the correct thing to do, what problem is this
solving?

thanks,

greg k-h