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Commit a6bb8752 authored by Harvey Yang's avatar Harvey Yang Committed by Greg Kroah-Hartman
Browse files

usb: usbip: userspace: remove the port state file when detaching port. 



with the last detached port state file remaining, usbip reports error on
attaching. So clean up the state files on detaching.

Signed-off-by: default avatarHarvey Yang <harvey.huawei.yang@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2a38e6fc

drivers/staging/usbip/userspace/src/usbip_detach.c

+9 −0
Original line number Original line Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include <sysfs/libsysfs.h>

#include <sysfs/libsysfs.h>





#include <ctype.h>

#include <ctype.h>

#include <limits.h>

#include <stdint.h>

#include <stdint.h>

#include <stdio.h>

#include <stdio.h>

#include <stdlib.h>

#include <stdlib.h>
@@ -46,6 +47,7 @@ static int detach_port(char *port) 
{

{

	int ret;

	int ret;

	uint8_t portnum;

	uint8_t portnum;

	char path[PATH_MAX+1];





	for (unsigned int i=0; i < strlen(port); i++)

	for (unsigned int i=0; i < strlen(port); i++)

		if (!isdigit(port[i])) {

		if (!isdigit(port[i])) {
@@ -57,6 +59,13 @@ static int detach_port(char *port) 




	portnum = atoi(port);

	portnum = atoi(port);





	/* remove the port state file */



	snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", portnum);



	remove(path);

	rmdir(VHCI_STATE_PATH);



	ret = usbip_vhci_driver_open();

	ret = usbip_vhci_driver_open();

	if (ret < 0) {

	if (ret < 0) {

		err("open vhci_driver");

		err("open vhci_driver");