'\" t
.\"     Title: atapi_drain_needed
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: libata SCSI translation/emulation
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "ATAPI_DRAIN_NEEDED" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "libata SCSI translation/emulat"
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.SH "NAME"
atapi_drain_needed \- Check whether data transfer may overflow
.SH "SYNOPSIS"
.HP \w'int\ atapi_drain_needed('u
.BI "int atapi_drain_needed(struct\ request\ *\ " "rq" ");"
.SH "ARGUMENTS"
.PP
\fIrq\fR
.RS 4
request to be checked
.RE
.SH "DESCRIPTION"
.PP
ATAPI commands which transfer variable length data to host might overflow due to application error or hardware bug\&. This function checks whether overflow should be drained and ignored for
\fIrequest\fR\&.
.PP
LOCKING: None\&.
.SH "RETURN"
.PP
1 if ; otherwise, 0\&.
.SH "AUTHOR"
.PP
\fBJeff Garzik\fR
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br