diff options
| author | Xiaoke Wang <xkernel.wang@foxmail.com> | 2021-12-17 01:01:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-16 12:44:49 +0100 |
| commit | 5582381be5cacb5d86db3798f3af7eaa67058520 (patch) | |
| tree | b2ebf78e87096abd7bacc026d69e2f5a4af54953 /fs | |
| parent | eb01a628b498b84b3491a0c7435a75b03cc8f435 (diff) | |
nfs: nfs4clinet: check the return value of kstrdup()
[ Upstream commit fbd2057e5329d3502a27491190237b6be52a1cb6 ]
kstrdup() returns NULL when some internal memory errors happen, it is
better to check the return value of it so to catch the memory error in
time.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/nfs4client.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 02b01b4025f6..c7672c89b967 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -1241,8 +1241,11 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname, } nfs_put_client(clp); - if (server->nfs_client->cl_hostname == NULL) + if (server->nfs_client->cl_hostname == NULL) { server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL); + if (server->nfs_client->cl_hostname == NULL) + return -ENOMEM; + } nfs_server_insert_lists(server); return nfs_probe_destination(server); |