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From: Jiri Slaby <jirislaby@gmail.com>
To: linux-pcmcia@lists.infradead.org
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: broken pcmcia_bus_match for dynids
Date: Wed, 13 Jan 2010 13:42:05 +0100	[thread overview]
Message-ID: <4B4DBF9D.7040002@gmail.com> (raw)

Hi,

stanse found that when PCMCIA_DEV_ID_MATCH_FAKE_CIS is set in
match_flags for a dynid, the pcmcia layer may deadlock.

pcmcia_load_firmware in such case calls non-atomic operations
(request_firmware, kzalloc(GFP_KERNEL)), while dynids.lock spinlock is held.

Any ideas how to solve this? Any idea, why p_drv->dynids.lock is not a
mutex instead?

thanks,
-- 
js

             reply	other threads:[~2010-01-13 12:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-13 12:42 Jiri Slaby [this message]
2010-01-16 12:04 ` broken pcmcia_bus_match for dynids Dominik Brodowski
2010-01-16 12:22   ` Jiri Slaby

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