crypto: ecc - Fix NULL pointer deref. on no default_rng
authorPierre <pinaraf@pinaraf.info>
Sun, 12 Nov 2017 14:24:32 +0000 (15:24 +0100)
committerHerbert Xu <herbert@gondor.apana.org.au>
Wed, 29 Nov 2017 06:33:24 +0000 (17:33 +1100)
commit4c0e22c90510308433272d7ba281b1eb4eda8209
tree4dc44a39b242540ee05c544b447d4365d745fc6c
parentf7daa71560ef384c282400e325fc0a6ae61a0bb7
crypto: ecc - Fix NULL pointer deref. on no default_rng

If crypto_get_default_rng returns an error, the
function ecc_gen_privkey should return an error.
Instead, it currently tries to use the default_rng
nevertheless, thus creating a kernel panic with a
NULL pointer dereference.
Returning the error directly, as was supposedly
intended when looking at the code, fixes this.

Signed-off-by: Pierre Ducroquet <pinaraf@pinaraf.info>
Reviewed-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/ecc.c