From: NeilBrown <neilb@suse.com>
To: Trond Myklebust <trond.myklebust@hammerspace.com>,
Anna Schumaker <anna.schumaker@netapp.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: linux-nfs@vger.kernel.org
Subject: [PATCH] SUNRPC: remove pointless test in unx_match()
Date: Mon, 07 Jan 2019 17:53:52 +1100 [thread overview]
Message-ID: <87d0p9j6v3.fsf@notabene.neil.brown.name> (raw)
In-Reply-To: <20181221091024.GF2735@kadam>
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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>
---
net/sunrpc/auth_unix.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 387f6b3ffbea..770e338a9b11 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -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;
--
2.14.0.rc0.dirty
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next prev parent reply other threads:[~2019-01-07 6:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-21 9:10 [bug report] SUNRPC: simplify auth_unix Dan Carpenter
2019-01-07 6:53 ` NeilBrown [this message]
2019-02-21 22:39 ` [PATCH] SUNRPC: remove pointless test in unx_match() Trond Myklebust
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