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authorAl Viro <viro@zeniv.linux.org.uk>2011-11-16 21:52:06 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-03 22:52:39 -0500
commit5352d3b65ae6f38e71e16f704414c1db4b4f7228 (patch)
tree6e6e30b52e2c87264a7e1ca5880007d64b95de3f
parent5ffc2836a2514e3f402327536b5dcc4a5b2d5571 (diff)
make nfs_follow_remote_path() handle ERR_PTR() passed as root_mnt
... rather than duplicating that in callers Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/nfs/super.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 73d87f9bab58..0e6dd56a9f1e 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2787,11 +2787,15 @@ static struct dentry *nfs_follow_remote_path(struct vfsmount *root_mnt,
const char *export_path)
{
struct dentry *dentry;
- int ret = nfs_referral_loop_protect();
+ int err;
- if (ret) {
+ if (IS_ERR(root_mnt))
+ return ERR_CAST(root_mnt);
+
+ err = nfs_referral_loop_protect();
+ if (err) {
mntput(root_mnt);
- return ERR_PTR(ret);
+ return ERR_PTR(err);
}
dentry = mount_subtree(root_mnt, export_path);
@@ -2815,9 +2819,7 @@ static struct dentry *nfs4_try_mount(int flags, const char *dev_name,
data->nfs_server.hostname);
data->nfs_server.export_path = export_path;
- res = ERR_CAST(root_mnt);
- if (!IS_ERR(root_mnt))
- res = nfs_follow_remote_path(root_mnt, export_path);
+ res = nfs_follow_remote_path(root_mnt, export_path);
dfprintk(MOUNT, "<-- nfs4_try_mount() = %ld%s\n",
IS_ERR(res) ? PTR_ERR(res) : 0,
@@ -3078,9 +3080,7 @@ static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
flags, data, data->hostname);
data->mnt_path = export_path;
- res = ERR_CAST(root_mnt);
- if (!IS_ERR(root_mnt))
- res = nfs_follow_remote_path(root_mnt, export_path);
+ res = nfs_follow_remote_path(root_mnt, export_path);
dprintk("<-- nfs4_referral_mount() = %ld%s\n",
IS_ERR(res) ? PTR_ERR(res) : 0,
IS_ERR(res) ? " [error]" : "");