Re: [PATCH] Re: SCSI scanning

From: Linus Torvalds (torvalds@transmeta.com)
Date: Mon Sep 18 2000 - 19:51:43 EST


On Mon, 18 Sep 2000, David S. Miller wrote:
>
> Did you try to boot these kernels containing scsi devices you
> don't have? I don't see how it could work (actually I do, see
> below).

Hmm..

Why would this not have happened for a module?

I agree that the thing looks fishy. But this is not new code, and it has
worked previously. What changed?

> Anyways, the code at the end of scsi_unregister_host should rather
> be something like:
>
> if (tpnt->present) {
> remove_proc_entry(tpnt->proc_name, proc_scsi);
> return;
> }

Umm, reading the code it looks more like the proper test would be

        if (!tpnt->present)
                return;

because if "present == 0", then the host not only won't have had the proc
entry added, it also won't have been added to the "scsi_hosts" list - so
the "remove the adapter from the linked list" step is the wrong way around
too. No?

(That linked list implementation, btw, is the worst possible list
implementation I have ever seen. Ugh).

And again, why did this not show up with modules?

Curious.

                Linus

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