linux-kernel - Re: [PATCH]: Fix deadlock in USBIP driver (staging), linux-2.6.34-rc5

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Message-Id: <201004222210.o3MMAw1B003185@localhost.localdomain>
Date:	Fri, 23 Apr 2010 00:10:58 +0200
From:	Eric Lescouet <lescouet@...tuallogix.com>
To:	Greg KH <gregkh@...e.de>
CC:	linux-kernel@...r.kernel.org, usbip-devel@...ts.sourceforge.net
Subject: Re: [PATCH]: Fix deadlock in USBIP driver (staging), linux-2.6.34-rc5

> Odd, the patch has all leading tabs and spaces stripped out of it, is
> linewrapped, and the tabs are converted to spaces :(
>
> Care to try again, third time's a charm...

OK. It looked better on my box and on the list as well ...
... but let's try another client.

    Eric.

Signed-off-by: Eric Lescouet <eric@...couet.org>
-------------

diff -Nur linux-2.6.34-rc5/drivers/staging/usbip/usbip_event.c linux-2.6.34-rc5.new/drivers/staging/usbip/usbip_event.c
--- linux-2.6.34-rc5/drivers/staging/usbip/usbip_event.c	2010-04-20 01:29:56.000000000 +0200
+++ linux-2.6.34-rc5.new/drivers/staging/usbip/usbip_event.c	2010-04-22 19:19:52.997889126 +0200
@@ -117,6 +117,9 @@
 {
 	struct usbip_task *eh = &ud->eh;
 
+	if (eh->thread == current)
+		return; /* do not wait for myself */
+
 	wait_for_completion(&eh->thread_done);
 	usbip_dbg_eh("usbip_eh has finished\n");
 }
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