[CRYPTO] hmac: Fix error truncation by unlikely()

The error return values are truncated by unlikely so we need to
save it first.  Thanks to Kyle Moffett for spotting this.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 file changed