linux-kernel - Re: [tpmdd-devel] [PATCH v2 0/3] tpm_tis: Clean up force module parameter

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Message-ID: <20151204180920.GA32292@obsidianresearch.com>
Date:	Fri, 4 Dec 2015 11:09:20 -0700
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	"Wilck, Martin" <martin.wilck@...fujitsu.com>
Cc:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
	"tpmdd-devel@...ts.sourceforge.net" 
	<tpmdd-devel@...ts.sourceforge.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Uwe Kleine-K??nig <u.kleine-koenig@...gutronix.de>
Subject: Re: [tpmdd-devel] [PATCH v2 0/3] tpm_tis: Clean up force module
 parameter

On Fri, Dec 04, 2015 at 10:10:15AM +0100, Wilck, Martin wrote:

> The following simple change fixes the ACPI probing after applying your
> latest series. The must have been another ACPI resource that you were
> erroneously using as mem resource. 

Close, acpi_dev_resource_memory destroys it's output parameter when it
fails :(

Should be:

	if (acpi_dev_resource_interrupt(ares, 0, &res))
		tpm_info->irq = res.start;
	else if (acpi_dev_resource_memory(ares, &res))
		tpm_info->res = res;

> The IS_ERR change() didn't fix it. I think it's not needed, although it
> probably can't hurt.

IS_ERR should address the oops though??

I've put all the revised patches here:

https://github.com/jgunthorpe/linux/commits/for-jarkko

If you are OK with them now I'll post the series.

Jason
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