From: Dan Carpenter <dan.carpenter@oracle.com>
To: Trond Myklebust <trond.myklebust@hammerspace.com>,
Peng Tao <tao.peng@primarydata.com>
Cc: Anna Schumaker <anna.schumaker@netapp.com>,
linux-nfs@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] NFS: Fix a potential NULL dereference in nfs_get_client()
Date: Thu, 3 Jun 2021 15:37:53 +0300 [thread overview]
Message-ID: <YLjNITBTTCCiik/+@mwanda> (raw)
None of the callers are expecting NULL returns from nfs_get_client() so
this code will lead to an Oops. It's better to return an error
pointer. I expect that this is dead code so hopefully no one is
affected.
Fixes: 31434f496abb ("nfs: check hostname in nfs_get_client")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
fs/nfs/client.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index cfeaadf56bf0..330f65727c45 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -406,7 +406,7 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *cl_init)
if (cl_init->hostname == NULL) {
WARN_ON(1);
- return NULL;
+ return ERR_PTR(-EINVAL);
}
/* see if the client already exists */
--
2.30.2
reply other threads:[~2021-06-03 12:38 UTC|newest]
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