diff options
| author | Xiaoke Wang <xkernel.wang@foxmail.com> | 2021-12-16 20:01:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-16 14:56:08 +0300 |
| commit | 58967a232ab3bba3386177e1029ad9794aa514d2 (patch) | |
| tree | dd5b890322aba4d61e8d0fb6e451e18eb1a43d96 /fs/nfs | |
| parent | bbf647ecebc0bfbcf2e182391e54c80ddff5a067 (diff) | |
| download | linux-58967a232ab3bba3386177e1029ad9794aa514d2.tar.xz | |
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/nfs')
| -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 af57332503be..ed06b68b2b4e 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -1368,8 +1368,11 @@ 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); |