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| author |   Xiaoke Wang <xkernel.wang@foxmail.com> | 2021-12-17 01:01:33 +0800 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2022-01-06 14:00:20 -0500 |
| commit | fbd2057e5329d3502a27491190237b6be52a1cb6 (patch) | |
| tree | 386839115951c3b02d78bde07681ed098ed870d6 /fs | |
| parent | NFSv4 only print the label when its queried (diff) | |
| download | linux-dev-fbd2057e5329d3502a27491190237b6be52a1cb6.tar.xz linux-dev-fbd2057e5329d3502a27491190237b6be52a1cb6.zip | |
nfs: nfs4clinet: check the return value of kstrdup()
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>
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 d8b5a250ca05..47a6cf892c95 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -1343,8 +1343,11 @@ 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_server(server, NFS_FH(d_inode(server->super->s_root))); |