diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 21:17:37 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 21:17:37 -0600 |
| commit | 06d8bf64ba25db42fcc60d2da2268ac22af94e77 (patch) | |
| tree | eb80eebf368957df18c2a4c0ee02897e0a9b06d2 /drivers/usb/class/usblp.c | |
| parent | 8f68abbfd9703e58920ff07d314a48654ed0bc3b (diff) | |
| parent | 5986a2ec35836a878350c54af4bd91b1de6abc59 (diff) | |
Merge branch 'master' into for_paulus
Diffstat (limited to 'drivers/usb/class/usblp.c')
| -rw-r--r-- | drivers/usb/class/usblp.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 6377db1b446d..63e50a1f1396 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -398,6 +398,9 @@ static int usblp_open(struct inode *inode, struct file *file) retval = 0; #endif + retval = usb_autopm_get_interface(intf); + if (retval < 0) + goto out; usblp->used = 1; file->private_data = usblp; @@ -442,6 +445,7 @@ static int usblp_release(struct inode *inode, struct file *file) usblp->used = 0; if (usblp->present) { usblp_unlink_urbs(usblp); + usb_autopm_put_interface(usblp->intf); } else /* finish cleanup from disconnect */ usblp_cleanup (usblp); mutex_unlock (&usblp_mutex); @@ -1203,14 +1207,9 @@ static int usblp_suspend (struct usb_interface *intf, pm_message_t message) { struct usblp *usblp = usb_get_intfdata (intf); - /* this races against normal access and open */ - mutex_lock (&usblp_mutex); - mutex_lock (&usblp->mut); /* we take no more IO */ usblp->sleeping = 1; usblp_unlink_urbs(usblp); - mutex_unlock (&usblp->mut); - mutex_unlock (&usblp_mutex); return 0; } @@ -1220,15 +1219,9 @@ static int usblp_resume (struct usb_interface *intf) struct usblp *usblp = usb_get_intfdata (intf); int r; - mutex_lock (&usblp_mutex); - mutex_lock (&usblp->mut); - usblp->sleeping = 0; r = handle_bidir (usblp); - mutex_unlock (&usblp->mut); - mutex_unlock (&usblp_mutex); - return r; } @@ -1251,6 +1244,7 @@ static struct usb_driver usblp_driver = { .suspend = usblp_suspend, .resume = usblp_resume, .id_table = usblp_ids, + .supports_autosuspend = 1, }; static int __init usblp_init(void) |