debugfs: change parameter check in debugfs_remove() functions

The dentry parameter in debugfs_remove() and debugfs_remove_recursive()
is checked being a NULL pointer. To make cleanup by callers easier this
check is extended using the IS_ERR_OR_NULL macro instead because the
debugfs_create_... functions can return a ERR_PTR() value.

Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index b80bc84..0de5e26 100644 (file)
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -498,7 +498,7 @@ void debugfs_remove(struct dentry *dentry)
        struct dentry *parent;
        int ret;
 
-       if (!dentry)
+       if (IS_ERR_OR_NULL(dentry))
                return;
 
        parent = dentry->d_parent;
@@ -530,7 +530,7 @@ void debugfs_remove_recursive(struct dentry *dentry)
        struct dentry *child;
        struct dentry *parent;
 
-       if (!dentry)
+       if (IS_ERR_OR_NULL(dentry))
                return;
 
        parent = dentry->d_parent;