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From: Vitaly Wool <vitalywool@gmail.com>
To: Ulf Hansson <ulf.hansson@stericsson.com>
Cc: linux-mmc@vger.kernel.org, Chris Ball <cjb@laptop.org>,
	Daniel Drake <dsd@laptop.org>,
	Per Forlin <per.forlin@stericsson.com>,
	Johan Rudholm <johan.rudholm@stericsson.com>,
	Lee Jones <lee.jones@linaro.org>
Subject: Re: [PATCH] mmc: core: Do not pre-claim host in suspend
Date: Thu, 19 Apr 2012 12:02:51 +0200	[thread overview]
Message-ID: <CAMJBoFNO7aKge9BqawRJdr=k_HxOOaeoPaif1sed_vN7kSF35g@mail.gmail.com> (raw)
In-Reply-To: <1334829325-3464-1-git-send-email-ulf.hansson@stericsson.com>

Hi Ulf,

On Thu, Apr 19, 2012 at 11:55 AM, Ulf Hansson
<ulf.hansson@stericsson.com> wrote:
> Since SDIO drivers may want to do some SDIO operations
> in their suspend callback functions, we must not keep
> the host claimed when calling them.
>
> Daniel Drake reported that libertas_sdio encountered
> a deadlock in it's suspend function.

I think it looks like a hack. Can you provide a better description of
where this deadlock actually happens?

If libertas_sdio claims host as a part of its suspend operation from a
context different from the suspend context, isn't it libertas_sdio
that has to be fixed?

Vitaly

  reply	other threads:[~2012-04-19 10:02 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-19  9:55 [PATCH] mmc: core: Do not pre-claim host in suspend Ulf Hansson
2012-04-19 10:02 ` Vitaly Wool [this message]
2012-04-19 15:48   ` Daniel Drake
2012-04-20  8:55     ` Ulf Hansson
2012-04-20 13:39       ` Daniel Drake
2012-04-20 13:41 ` Chris Ball
2012-04-20 17:17 ` Sujit Reddy Thumma

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