hppfs: handle ->put_link()

current code works only because nothing in procfs has non-trivial
->put_link().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 12 insertions, 6 deletions

diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c
index a5089a6dd67..7239efc690d 100644
--- a/fs/hppfs/hppfs.c
+++ b/fs/hppfs/hppfs.c
@@ -646,22 +646,27 @@ static const struct super_operations hppfs_sbops = {
 static int hppfs_readlink(struct dentry *dentry, char __user *buffer,
                           int buflen)
 {
-        struct dentry *proc_dentry;
-
-        proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
+        struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
         return proc_dentry->d_inode->i_op->readlink(proc_dentry, buffer,
                                                     buflen);
 }
 
 static void *hppfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-        struct dentry *proc_dentry;
-
-        proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
+        struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
 
         return proc_dentry->d_inode->i_op->follow_link(proc_dentry, nd);
 }
 
+static void hppfs_put_link(struct dentry *dentry, struct nameidata *nd,
+                           void *cookie)
+{
+        struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
+
+        if (proc_dentry->d_inode->i_op->put_link)
+                proc_dentry->d_inode->i_op->put_link(proc_dentry, nd, cookie);
+}
+
 static const struct inode_operations hppfs_dir_iops = {
         .lookup         = hppfs_lookup,
 };
@@ -669,6 +674,7 @@ static const struct inode_operations hppfs_dir_iops = {
 static const struct inode_operations hppfs_link_iops = {
         .readlink       = hppfs_readlink,
         .follow_link    = hppfs_follow_link,
+        .put_link       = hppfs_put_link,
 };
 
 static struct inode *get_inode(struct super_block *sb, struct dentry *dentry)