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USB: extend poisoning to anchors

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this extends the poisoning concept to anchors. This way poisoning
will work with fire and forget drivers.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Oliver Neukum
2008-07-29 16:18:47 +02:00
committed by Greg Kroah-Hartman
parent 55b447bf79
commit 6a2839bedc
2 changed files with 50 additions and 9 deletions
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2
include/linux/usb.h
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@@ -1135,6 +1135,7 @@ struct usb_anchor {
struct list_head urb_list;
wait_queue_head_t wait;
spinlock_t lock;
unsigned int poisoned:1;
};
static inline void init_usb_anchor(struct usb_anchor *anchor)
@@ -1462,6 +1463,7 @@ extern void usb_kill_urb(struct urb *urb);
extern void usb_poison_urb(struct urb *urb);
extern void usb_unpoison_urb(struct urb *urb);
extern void usb_kill_anchored_urbs(struct usb_anchor *anchor);
extern void usb_poison_anchored_urbs(struct usb_anchor *anchor);
extern void usb_unlink_anchored_urbs(struct usb_anchor *anchor);
extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor);
extern void usb_unanchor_urb(struct urb *urb);