From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Evan Lavelle <sa212+lkml@cyconix.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: Kernel deferring driver 'close' call: workaround?
Date: Wed, 26 Jan 2011 13:17:03 +0000 [thread overview]
Message-ID: <20110126131703.3033ad87@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <4D401824.6090109@cyconix.com>
> 'strace' shows that the 'close' succeeds, but the driver debug output
> shows that the driver close/release (step 2) is not called before the
> next open (step 3), so the open fails.
I imagine the user has a bug in their app. The close method is called on
the final close of the handle. That means if for example you do something
like fork off a child process and forget to close the handle then it
won't actually close down until the final user closes it.
Alan
next prev parent reply other threads:[~2011-01-26 13:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-26 12:48 Evan Lavelle
2011-01-26 13:17 ` Alan Cox [this message]
2011-01-26 14:29 ` Evan Lavelle
2011-01-26 14:38 ` Alan Cox
2011-01-26 15:29 ` Evan Lavelle
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