From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Fri, 3 Apr 2015 11:20:15 +0000 (+0900)
Subject: dmaengine: usb-dmac: Fix dereferencing freed memory 'desc'
X-Git-Tag: omap-for-v4.2/o2_dc~23^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7d8e892aa6fe280a2e2974d9fd1ec9253ee1a05;p=pandora-kernel.git

dmaengine: usb-dmac: Fix dereferencing freed memory 'desc'

This patch fixes an issue that the usb_dmac_desc_free() is
dereferencing freed memory 'desc' because it uses list_for_each_entry().
This function should use list_for_each_entry_safe().

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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