crypto: nx - use common code for both NX decompress success cases

Replace the duplicated finishing code (set destination buffer length and
set return code to 0) in the case of decompressing a buffer with no header
with a goto to the success case of decompressing a buffer with a header.

This is a trivial change that allows both success cases to use common code,
and includes the pr_debug() msg in both cases as well.
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/nx/nx-842-crypto.c

@@ -520,10 +520,7 @@ static int nx842_crypto_decompress(struct crypto_tfm *tfm,
 		if (ret)
 			goto unlock;
 
-		*dlen = p.ototal;
-
-		ret = 0;
-		goto unlock;
+		goto success;
 	}
 
 	if (!hdr->groups) {
@@ -557,6 +554,7 @@ static int nx842_crypto_decompress(struct crypto_tfm *tfm,
 			goto unlock;
 	}
 
+success:
 	*dlen = p.ototal;
 
 	pr_debug("decompress total slen %x dlen %x\n", slen, *dlen);