'\" t
.\"     Title: free_irq
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Hardware Interfaces
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "FREE_IRQ" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Hardware Interfaces"
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.SH "NAME"
free_irq \- free an interrupt allocated with request_irq
.SH "SYNOPSIS"
.HP \w'void\ free_irq('u
.BI "void free_irq(unsigned\ int\ " "irq" ", void\ *\ " "dev_id" ");"
.SH "ARGUMENTS"
.PP
\fIirq\fR
.RS 4
Interrupt line to free
.RE
.PP
\fIdev_id\fR
.RS 4
Device identity to free
.RE
.SH "DESCRIPTION"
.PP
Remove an interrupt handler\&. The handler is removed and if the interrupt line is no longer in use by any driver it is disabled\&. On a shared IRQ the caller must ensure the interrupt is disabled on the card it drives before calling this function\&. The function does not return until any executing interrupts for this IRQ have completed\&.
.PP
This function must not be called from interrupt context\&.
.SH "COPYRIGHT"
.br