From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Tue, 11 Sep 2012 15:21:45 +0000 (+0200)
Subject: dmaengine: at_hdmac: check that each sg data length is non-null
X-Git-Tag: v3.2.31~90
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=28646c86762c0dc3b23404005cf162abd7e2d3e3;p=pandora-kernel.git

dmaengine: at_hdmac: check that each sg data length is non-null

commit c456797681db814f4f5b36909e8e94047bf53d9c upstream.

Avoid the construction of a malformed DMA request sent to
the DMA controller.
Log message is for debug only because this condition is unlikely to
append and may only trigger at driver development time.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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