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debugfs: document that debugfs_remove*() accepts NULL and error values

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According to commit a59d6293e5 ("debugfs: change parameter check in
debugfs_remove() functions"), this is meant to make cleanup easier for
callers. In that case it ought to be documented.

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ulf Magnusson 2015-09-07 19:03:15 +02:00 committed by Greg Kroah-Hartman
parent 621a5f7ad9
commit 398dc4ad52
1 changed files with 4 additions and 2 deletions
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6
fs/debugfs/inode.c
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@ -533,7 +533,8 @@ static int __debugfs_remove(struct dentry *dentry, struct dentry *parent)
/**
* debugfs_remove - removes a file or directory from the debugfs filesystem
* @dentry: a pointer to a the dentry of the file or directory to be
* removed.
* removed. If this parameter is NULL or an error value, nothing
* will be done.
*
* This function removes a file or directory in debugfs that was previously
* created with a call to another debugfs function (like
@ -565,7 +566,8 @@ EXPORT_SYMBOL_GPL(debugfs_remove);
/**
* debugfs_remove_recursive - recursively removes a directory
* @dentry: a pointer to a the dentry of the directory to be removed.
* @dentry: a pointer to a the dentry of the directory to be removed. If this
* parameter is NULL or an error value, nothing will be done.
*
* This function recursively removes a directory tree in debugfs that
* was previously created with a call to another debugfs function