linux-kernel - Re: MFD: mutex from ISR in ezx-pcap?

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Message-Id: <1246306840.18231.29.camel@brutus>
Date:	Mon, 29 Jun 2009 17:20:40 -0300
From:	Daniel Ribeiro <drwyrm@...il.com>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	sameo@...ux.intel.com, LKML <linux-kernel@...r.kernel.org>,
	laforge@...nezx.org
Subject: Re: MFD: mutex from ISR in ezx-pcap?

Hi Jiri,

Em Seg, 2009-06-29 às 21:34 +0200, Jiri Slaby escreveu:
> Hi,
> 
> pcap_adc_irq tries to perform non-atomic operations in ISR which is not
> allowed. Above that, it may deadlock.
> 
> Since all the operations there (read, write, mutex locking) may sleep,
> any objections to convert the ISR contents to a workqueue?

pcap_adc_irq actually already runs from a workqueue (pcap_isr_work).

-- 
Daniel Ribeiro

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