korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-17 09:14:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

USB: usblp: Remove checks no longer needed with the new runtime PM system

Browse Source 
Under the new system a device cannot be suspended against
the driver's wish. Therefore this condition no longer needs
to be checked for.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Oliver Neukum 2009-12-28 00:52:17 +01:00 committed by Greg Kroah-Hartman
parent c1284d7726
commit 3a90f81872
1 changed files with 3 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/usb/class/usblp.c
View File

@ -163,7 +163,6 @@ struct usblp {
unsigned char used; /* True if open */
unsigned char present; /* True if not disconnected */
unsigned char bidir; /* interface is bidirectional */
unsigned char sleeping; /* interface is suspended */
unsigned char no_paper; /* Paper Out happened */
unsigned char *device_id_string; /* IEEE 1284 DEVICE ID string (ptr) */
/* first 2 bytes are (big-endian) length */
@ -191,7 +190,6 @@ static void usblp_dump(struct usblp *usblp) {
dbg("quirks=%d", usblp->quirks);
dbg("used=%d", usblp->used);
dbg("bidir=%d", usblp->bidir);
dbg("sleeping=%d", usblp->sleeping);
dbg("device_id_string=\"%s\"",
usblp->device_id_string ?
usblp->device_id_string + 2 :
@ -376,7 +374,7 @@ static int usblp_check_status(struct usblp *usblp, int err)
static int handle_bidir (struct usblp *usblp)
{
if (usblp->bidir && usblp->used && !usblp->sleeping) {
if (usblp->bidir && usblp->used) {
if (usblp_submit_read(usblp) < 0)
return -EIO;
}
@ -503,11 +501,6 @@ static long usblp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
goto done;
}
if (usblp->sleeping) {
retval = -ENODEV;
goto done;
}
dbg("usblp_ioctl: cmd=0x%x (%c nr=%d len=%d dir=%d)", cmd, _IOC_TYPE(cmd),
_IOC_NR(cmd), _IOC_SIZE(cmd), _IOC_DIR(cmd) );
@ -914,8 +907,6 @@ static int usblp_wtest(struct usblp *usblp, int nonblock)
return 0;
}
spin_unlock_irqrestore(&usblp->lock, flags);
if (usblp->sleeping)
return -ENODEV;
if (nonblock)
return -EAGAIN;
return 1;
@ -968,8 +959,6 @@ static int usblp_rtest(struct usblp *usblp, int nonblock)
return 0;
}
spin_unlock_irqrestore(&usblp->lock, flags);
if (usblp->sleeping)
return -ENODEV;
if (nonblock)
return -EAGAIN;
return 1;
@ -1377,12 +1366,10 @@ static void usblp_disconnect(struct usb_interface *intf)
mutex_unlock (&usblp_mutex);
}
static int usblp_suspend (struct usb_interface *intf, pm_message_t message)
static int usblp_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usblp *usblp = usb_get_intfdata (intf);
/* we take no more IO */
usblp->sleeping = 1;
usblp_unlink_urbs(usblp);
#if 0 /* XXX Do we want this? What if someone is reading, should we fail? */
/* not strictly necessary, but just in case */
@ -1393,12 +1380,11 @@ static int usblp_suspend (struct usb_interface *intf, pm_message_t message)
return 0;
}
static int usblp_resume (struct usb_interface *intf)
static int usblp_resume(struct usb_interface *intf)
{
struct usblp *usblp = usb_get_intfdata (intf);
int r;
usblp->sleeping = 0;
r = handle_bidir (usblp);
return r;