[PATCH 1/4] ecryptfs: remove unnessesary null check in ecryptfs_keyring_auth_tok_for_sig

[YueHaibing]

request_key and ecryptfs_get_encrypted_key never
return a NULL pointer, so no need do a null check.

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 fs/ecryptfs/keystore.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 95662fd46b1d..a1afb162b9d2 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -1626,9 +1626,9 @@ int ecryptfs_keyring_auth_tok_for_sig(struct key 
**auth_tok_key,
        int rc = 0;
 
        (*auth_tok_key) = request_key(&key_type_user, sig, NULL);
-       if (!(*auth_tok_key) || IS_ERR(*auth_tok_key)) {
+       if (IS_ERR(*auth_tok_key)) {
                (*auth_tok_key) = ecryptfs_get_encrypted_key(sig);
-               if (!(*auth_tok_key) || IS_ERR(*auth_tok_key)) {
+               if (IS_ERR(*auth_tok_key)) {
                        printk(KERN_ERR "Could not find key with description: 
[%s]\n",
                              sig);
                        rc = process_request_key_err(PTR_ERR(*auth_tok_key));
-- 
2.17.1