'\" t
.\"     Title: debugfs_lookup
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: July 2017
.\"    Manual: The debugfs filesystem
.\"    Source: Kernel Hackers Manual 4.12.2
.\"  Language: English
.\"
.TH "DEBUGFS_LOOKUP" "9" "July 2017" "Kernel Hackers Manual 4\&.12\&" "The debugfs filesystem"
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.SH "NAME"
debugfs_lookup \- look up an existing debugfs file
.SH "SYNOPSIS"
.HP \w'struct\ dentry\ *\ debugfs_lookup('u
.BI "struct dentry * debugfs_lookup(const\ char\ *\ " "name" ", struct\ dentry\ *\ " "parent" ");"
.SH "ARGUMENTS"
.PP
\fIconst char * name\fR
.RS 4
a pointer to a string containing the name of the file to look up\&.
.RE
.PP
\fIstruct dentry * parent\fR
.RS 4
a pointer to the parent dentry of the file\&.
.RE
.SH "DESCRIPTION"
.PP
This function will return a pointer to a dentry if it succeeds\&. If the file doesn\*(Aqt exist or an error occurs,
\fBNULL\fR
will be returned\&. The returned dentry must be passed to
\fBdput\fR
when it is no longer needed\&.
.PP
If debugfs is not enabled in the kernel, the value \-\fBENODEV\fR
will be returned\&.
.SH "COPYRIGHT"
.br