9p: v9fs_fid_add() can't fail now

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

fs/9p/fid.c

@@ -41,12 +41,11 @@
  *
  */
 
-int v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid)
+void v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid)
 {
 	spin_lock(&dentry->d_lock);
 	hlist_add_head(&fid->dlist, (struct hlist_head *)&dentry->d_fsdata);
 	spin_unlock(&dentry->d_lock);
-	return 0;
 }
 
 /**

fs/9p/fid.h

@@ -25,6 +25,6 @@
 
 struct p9_fid *v9fs_fid_lookup(struct dentry *dentry);
 struct p9_fid *v9fs_fid_clone(struct dentry *dentry);
-int v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid);
+void v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid);
 struct p9_fid *v9fs_writeback_fid(struct dentry *dentry);
 #endif

fs/9p/vfs_inode.c

@@ -692,9 +692,7 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
 				   "inode creation failed %d\n", err);
 			goto error;
 		}
-		err = v9fs_fid_add(dentry, fid);
-		if (err < 0)
-			goto error;
+		v9fs_fid_add(dentry, fid);
 		d_instantiate(dentry, inode);
 	}
 	return ofid;
@@ -830,9 +828,7 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 		inode = NULL;
 		goto error;
 	}
-	result = v9fs_fid_add(dentry, fid);
-	if (result < 0)
-		goto error_iput;
+	v9fs_fid_add(dentry, fid);
 inst_out:
 	/*
 	 * If we had a rename on the server and a parallel lookup
@@ -845,7 +841,6 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 	if (!IS_ERR(res))
 		return res;
 	result = PTR_ERR(res);
-error_iput:
 	iput(inode);
 error:
 	p9_client_clunk(fid);

fs/9p/vfs_inode_dotl.c

@@ -333,9 +333,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
 	/* Now set the ACL based on the default value */
 	v9fs_set_create_acl(inode, fid, dacl, pacl);
 
-	err = v9fs_fid_add(dentry, fid);
-	if (err < 0)
-		goto error;
+	v9fs_fid_add(dentry, fid);
 	d_instantiate(dentry, inode);
 
 	v9inode = V9FS_I(inode);
@@ -453,12 +451,11 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
 				 err);
 			goto error;
 		}
-		err = v9fs_fid_add(dentry, fid);
-		if (err < 0)
-			goto error;
+		v9fs_fid_add(dentry, fid);
 		v9fs_set_create_acl(inode, fid, dacl, pacl);
 		d_instantiate(dentry, inode);
 		fid = NULL;
+		err = 0;
 	} else {
 		/*
 		 * Not in cached mode. No need to populate
@@ -747,11 +744,10 @@ v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
 				 err);
 			goto error;
 		}
-		err = v9fs_fid_add(dentry, fid);
-		if (err < 0)
-			goto error;
+		v9fs_fid_add(dentry, fid);
 		d_instantiate(dentry, inode);
 		fid = NULL;
+		err = 0;
 	} else {
 		/* Not in cached mode. No need to populate inode with stat */
 		inode = v9fs_get_inode(dir->i_sb, S_IFLNK, 0);
@@ -900,11 +896,10 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 			goto error;
 		}
 		v9fs_set_create_acl(inode, fid, dacl, pacl);
-		err = v9fs_fid_add(dentry, fid);
-		if (err < 0)
-			goto error;
+		v9fs_fid_add(dentry, fid);
 		d_instantiate(dentry, inode);
 		fid = NULL;
+		err = 0;
 	} else {
 		/*
 		 * Not in cached mode. No need to populate inode with stat.