From: jwboyer@redhat.com <jwboyer@redhat.com>
Date: Mon, 20 Feb 2012 20:34:34 +0000 (-0500)
Subject: USB: ums_realtek: do not use stack memory for DMA in __do_config_autodelink
X-Git-Tag: v3.4-rc1~184^2~22^2~99
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4898e07174b79013afd2b422ef6c4336ef8e6783;p=pandora-kernel.git

USB: ums_realtek: do not use stack memory for DMA in __do_config_autodelink

__do_config_autodelink passes the data variable to the transport function.
If the calling functions pass a stack variable, this will eventually trigger
a DMA-API debug backtrace for mapping stack memory in the DMA buffer.  Fix
this by calling kmemdup for the passed data instead.

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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