SUNRPC: remove pointless test in unx_match()
authorNeilBrown <neilb@suse.com>
Mon, 7 Jan 2019 06:53:52 +0000 (17:53 +1100)
committerTrond Myklebust <trond.myklebust@hammerspace.com>
Wed, 20 Feb 2019 22:33:55 +0000 (17:33 -0500)
As reported by Dan Carpenter, this test for acred->cred being set is
inconsistent with the dereference of the pointer a few lines earlier.

An 'auth_cred' *always* has ->cred set - every place that creates one
initializes this field, often as the first thing done.

So remove this test.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
net/sunrpc/auth_unix.c

index 387f6b3ffbeafa79db312e0745af5f9ebd9c21ca..770e338a9b117b188d5ac3eefd8f2c689b9ba69a 100644 (file)
@@ -87,7 +87,7 @@ unx_match(struct auth_cred *acred, struct rpc_cred *cred, int flags)
        if (!uid_eq(cred->cr_cred->fsuid, acred->cred->fsuid) || !gid_eq(cred->cr_cred->fsgid, acred->cred->fsgid))
                return 0;
 
-       if (acred->cred && acred->cred->group_info != NULL)
+       if (acred->cred->group_info != NULL)
                groups = acred->cred->group_info->ngroups;
        if (groups > UNX_NGROUPS)
                groups = UNX_NGROUPS;