Commit c1a88bb2 authored by Dan Carpenter's avatar Dan Carpenter Committed by Ben Hutchings

KEYS: Fix an error code in request_master_key()

commit 57cb17e7 upstream.

This function has two callers and neither are able to handle a NULL
return.  Really, -EINVAL is the correct thing return here anyway.  This
fixes some static checker warnings like:

	security/keys/encrypted-keys/encrypted.c:709 encrypted_key_decrypt()
	error: uninitialized symbol 'master_key'.

Fixes: 7e70cb49 ("keys: add new key-type encrypted")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Acked-by: default avatarMimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: default avatarJames Morris <james.l.morris@oracle.com>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
parent d67efe72
...@@ -428,7 +428,7 @@ static int init_blkcipher_desc(struct blkcipher_desc *desc, const u8 *key, ...@@ -428,7 +428,7 @@ static int init_blkcipher_desc(struct blkcipher_desc *desc, const u8 *key,
static struct key *request_master_key(struct encrypted_key_payload *epayload, static struct key *request_master_key(struct encrypted_key_payload *epayload,
u8 **master_key, size_t *master_keylen) u8 **master_key, size_t *master_keylen)
{ {
struct key *mkey = NULL; struct key *mkey = ERR_PTR(-EINVAL);
if (!strncmp(epayload->master_desc, KEY_TRUSTED_PREFIX, if (!strncmp(epayload->master_desc, KEY_TRUSTED_PREFIX,
KEY_TRUSTED_PREFIX_LEN)) { KEY_TRUSTED_PREFIX_LEN)) {
......
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