crypto: gcm - use crypto_grab_ahash() and simplify error paths
authorEric Biggers <ebiggers@google.com>
Fri, 3 Jan 2020 03:58:57 +0000 (19:58 -0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Thu, 9 Jan 2020 03:30:56 +0000 (11:30 +0800)
commitab6ffd360d3ca3c98cba401f923b64683d666ab6
treed38b34b1c496ac2a3d51fcb3727afdc8ea7f3316
parent370738824b8e2c0ea5d8b4e4b4142fb7bab1a403
crypto: gcm - use crypto_grab_ahash() and simplify error paths

Make the gcm and gcm_base templates use the new function
crypto_grab_ahash() to initialize their ahash spawn.

This is needed to make all spawns be initialized in a consistent way.

Also simplify the error handling by taking advantage of crypto_drop_*()
now accepting (as a no-op) spawns that haven't been initialized yet.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/gcm.c