Re: NULL pointer at kset_find_obj

[Rusty Russell]

David Howells <dhowells@xxxxxxxxxx> writes:
> Btw, one thing I've noticed is that sysfs appears to be able to execute code
> in the module by way of parameter alterations before the module is completely
> set up.

It's preceeded by the module parameter parsing, which can do the same
thing, so I don't think it's an issue.

> I'm not sure this is an actual problem - but it might give an
> interesting interaction with module initialisers as they might reasonably
> expect that module parameters can't change whilst they're running.

This is possible, but most changable parameters are very simple.  There
are a few users of kparam_block_sysfs_write(), but not many...

Cheers,
Rusty.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/