From: Tadeusz Struk <tadeusz.struk@intel.com>
Date: Tue, 14 Oct 2014 01:24:26 +0000 (-0700)
Subject: crypto: qat - Prevent dma mapping zero length assoc data
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~129^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=923a6e5e5f171317ac8bb462ac4b814fa7880d3c;p=pandora-kernel.git

crypto: qat - Prevent dma mapping zero length assoc data

Do not attempt to dma map associated data if it is zero length.

Cc: stable@vger.kernel.org
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Tested-by: Nikolay Aleksandrov <nikolay@redhat.com>
Reviewed-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

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