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KEYS: Fix an error code in request_master_key() 

commit 57cb17e764ba0aaa169d07796acce54ccfbc6cae 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: 7e70cb4978 ("keys: add new key-type encrypted")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
Dan Carpenter 2017-02-09 17:17:52 +00:00 committed by syphyr
parent cc31fdbbd5
commit 2ef345bfc3
1 changed files with 1 additions and 1 deletions
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2
security/keys/encrypted-keys/encrypted.c
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@ -434,7 +434,7 @@ static int init_blkcipher_desc(struct blkcipher_desc *desc, const u8 *key,
static struct key *request_master_key(struct encrypted_key_payload *epayload,
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,
KEY_TRUSTED_PREFIX_LEN)) {