'\" t
.\"     Title: free_irq
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: June 2017
.\"    Manual: Public Functions Provided
.\"    Source: Kernel Hackers Manual 4.11.3
.\"  Language: English
.\"
.TH "FREE_IRQ" "9" "June 2017" "Kernel Hackers Manual 4\&.11\&" "Public Functions Provided"
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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
\fIunsigned int irq\fR
.RS 4
Interrupt line to free
.RE
.PP
\fIvoid * dev_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 "AUTHORS"
.PP
\fBThomas Gleixner\fR <\&tglx@linutronix.de\&>
.RS 4
Author.
.RE
.PP
\fBIngo Molnar\fR <\&mingo@elte.hu\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br