Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - a crash regression in the new skcipher walker

   - incorrect return value in public_key_verify_signature

   - fix for in-place signing in the sign-file utility"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: skcipher - fix crash in virtual walk
  sign-file: Fix inplace signing when src and dst names are both specified
  crypto: asymmetric_keys - set error code on failure

Author: torvalds

crypto/asymmetric_keys/public_key.c

@@ -121,6 +121,7 @@ int public_key_verify_signature(const struct public_key *pkey,
 	if (ret)
 		goto error_free_req;
 
+	ret = -ENOMEM;
 	outlen = crypto_akcipher_maxsize(tfm);
 	output = kmalloc(outlen, GFP_KERNEL);
 	if (!output)

crypto/skcipher.c

@@ -226,7 +226,9 @@ static int skcipher_next_slow(struct skcipher_walk *walk, unsigned int bsize)
 	void *v;
 
 	if (!phys) {
-		buffer = walk->buffer ?: walk->page;
+		if (!walk->buffer)
+			walk->buffer = walk->page;
+		buffer = walk->buffer;
 		if (buffer)
 			goto ok;
 	}

scripts/sign-file.c

@@ -267,7 +267,7 @@ int main(int argc, char **argv)
 	}
 	x509_name = argv[2];
 	module_name = argv[3];
-	if (argc == 5) {
+	if (argc == 5 && strcmp(argv[3], argv[4]) != 0) {
 		dest_name = argv[4];
 		replace_orig = false;
 	} else {