crypto: sunxi-ss - Fix a possible driver hang with ciphers

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The sun4i_ss_opti_poll function cipher data until the output miter have
a length of 0.
If the crypto API client, give more SGs than necessary this could result
in an infinite loop.
Fix it by checking for remaining bytes, just like sun4i_ss_cipher_poll().

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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LABBE Corentin 2015-09-09 14:27:07 +02:00 • committed by Herbert Xu

parent f1ab428711

commit 9da75de030

1 changed files with 1 additions and 1 deletions

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drivers/crypto/sunxi-ss/sun4i-ss-cipher.c

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