From: Vutla, Lokesh <lokeshvutla@ti.com>
Date: Tue, 31 Mar 2015 04:22:25 +0000 (+0530)
Subject: crypto: omap-aes - Fix support for unequal lengths
X-Git-Tag: omap-for-v4.1/fixes-rc1~140^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d7e7e02a044025237b6f62a20521170b794537f;p=pandora-kernel.git

crypto: omap-aes - Fix support for unequal lengths

For cases where total length of an input SGs is not same as
length of the input data for encryption, omap-aes driver
crashes. This happens in the case when IPsec is trying to use
omap-aes driver.

To avoid this, we copy all the pages from the input SG list
into a contiguous buffer and prepare a single element SG list
for this buffer with length as the total bytes to crypt, which is
similar thing that is done in case of unaligned lengths.

Fixes: 6242332ff2f3 ("crypto: omap-aes - Add support for cases of unaligned lengths")
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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