crypto: caam - check sg_count() return value
authorHoria Geantă <horia.geanta@nxp.com>
Fri, 10 Feb 2017 12:07:18 +0000 (14:07 +0200)
committerHerbert Xu <herbert@gondor.apana.org.au>
Wed, 15 Feb 2017 05:23:39 +0000 (13:23 +0800)
commitfd144d83cc42cfe6c82cba76bc0113dacd53a4d4
tree7d233ab0c8a743332ef4ac426611348ab43f755a
parentfd88aac93e4dc7810940e854be1c3dc5adb20120
crypto: caam - check sg_count() return value

sg_count() internally calls sg_nents_for_len(), which could fail
in case the required number of bytes is larger than the total
bytes in the S/G.

Thus, add checks to validate the input.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/caam/caamalg.c