From: Peter Holik <peter@holik.at>
Date: Fri, 18 Mar 2011 17:47:44 +0000 (+0100)
Subject: USB: uss720 fixup refcount position
X-Git-Tag: v2.6.37.6~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36c1f7510c24cc67efdf245e7d46009df4905dc2;p=pandora-kernel.git

USB: uss720 fixup refcount position

commit adaa3c6342b249548ea830fe8e02aa5b45be8688 upstream.

My testprog do a lot of bitbang - after hours i got following warning and my machine lockups:
WARNING: at /build/buildd/linux-2.6.38/lib/kref.c:34
After debugging uss720 driver i discovered that the completion callback was called before
usb_submit_urb returns. The callback frees the request structure that is krefed on return by
usb_submit_urb.

Signed-off-by: Peter Holik <peter@holik.at>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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