netdev - Re: [PATCH][ATM] iphase: BUG: sleeping function called from invalid context

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Message-Id: <200806151447.m5FElY6N009124@cmf.nrl.navy.mil>
Date:	Sun, 15 Jun 2008 10:47:34 -0400
From:	"Chas Williams (CONTRACTOR)" <chas@....nrl.navy.mil>
To:	jorge@...2.net
cc:	netdev@...r.kernel.org
Subject: Re: [PATCH][ATM] iphase: BUG: sleeping function called from invalid context

In message <48551280.1090706@...2.net>,"Jorge Boncompte [DTI2]" writes:
>> the lock is necessary to prevent multiple cards from modifying iadev_count
>> at the wrong time since iadev_count is incremented and decremented.
>> it might be simpler to just make a local copy of iadev_count and just
>> always increment iadev_count.  if you fail to init a particular card,
>> you will just leave a hole in ia_dev[].  something like the attached.
>
>	I thought that device initialization inside a driver is serialized. isn't it?

i honestly dont know.  even if it is serialized, that code is just
hideous.  if you had a system with hotplug support, it wouldnt work right.

>	I have a patch that removes iadev and iadev_count enterely that i did not sent because i thought it wouldn't be 
>considered a bug fix. I'll sent it this week.

i would certainly prefer that version.  no matter, how you fix the
problem it is a bug fix.
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