From 6a0ed1de8ecee0cde21ea667891a03f6c84ecd66 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Fri, 26 Oct 2007 13:32:40 -0400 Subject: [PATCH] NFS: Clean up: copy hostname with kstrndup during mount processing Clean up: mount option parsing uses kstrndup in several places, rather than using kzalloc. Replace the few remaining uses of kzalloc with kstrndup, for consistency. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- fs/nfs/super.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 330c392273..a3492d6f8f 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -1648,21 +1648,16 @@ static int nfs4_validate_mount_data(void *options, len = c - dev_name; if (len > NFS4_MAXNAMLEN) return -ENAMETOOLONG; - args->nfs_server.hostname = kzalloc(len, GFP_KERNEL); - if (args->nfs_server.hostname == NULL) - return -ENOMEM; - strncpy(args->nfs_server.hostname, dev_name, len - 1); + /* N.B. caller will free nfs_server.hostname in all cases */ + args->nfs_server.hostname = kstrndup(dev_name, len, GFP_KERNEL); c++; /* step over the ':' */ len = strlen(c); if (len > NFS4_MAXPATHLEN) return -ENAMETOOLONG; - args->nfs_server.export_path = kzalloc(len + 1, GFP_KERNEL); - if (args->nfs_server.export_path == NULL) - return -ENOMEM; - strncpy(args->nfs_server.export_path, c, len); + args->nfs_server.export_path = kstrndup(c, len, GFP_KERNEL); - dprintk("MNTPATH: %s\n", args->nfs_server.export_path); + dprintk("NFS: MNTPATH: '%s'\n", args->nfs_server.export_path); if (args->client_address == NULL) goto out_no_client_address; -- 2.39.5