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-rw-r--r--drivers/usb/host/ehci-q.c3
-rw-r--r--drivers/usb/host/isp116x-hcd.c15
-rw-r--r--drivers/usb/host/ohci-q.c3
-rw-r--r--drivers/usb/host/r8a66597-hcd.c8
-rw-r--r--drivers/usb/host/sl811-hcd.c3
-rw-r--r--drivers/usb/host/u132-hcd.c36
-rw-r--r--drivers/usb/host/uhci-hcd.h15
-rw-r--r--drivers/usb/host/uhci-q.c12
8 files changed, 32 insertions, 63 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 794d27e0780..b10f39c047e 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -256,8 +256,7 @@ __acquires(ehci->lock)
/* complete() can reenter this HCD */
usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
spin_unlock (&ehci->lock);
- urb->status = status;
- usb_hcd_giveback_urb (ehci_to_hcd(ehci), urb);
+ usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status);
spin_lock (&ehci->lock);
}
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 35b3507ff40..c27417f5b9d 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -277,7 +277,7 @@ static void preproc_atl_queue(struct isp116x *isp116x)
processed urbs.
*/
static void finish_request(struct isp116x *isp116x, struct isp116x_ep *ep,
- struct urb *urb)
+ struct urb *urb, int status)
__releases(isp116x->lock) __acquires(isp116x->lock)
{
unsigned i;
@@ -291,7 +291,7 @@ __releases(isp116x->lock) __acquires(isp116x->lock)
usb_hcd_unlink_urb_from_ep(isp116x_to_hcd(isp116x), urb);
spin_unlock(&isp116x->lock);
- usb_hcd_giveback_urb(isp116x_to_hcd(isp116x), urb);
+ usb_hcd_giveback_urb(isp116x_to_hcd(isp116x), urb, status);
spin_lock(&isp116x->lock);
/* take idle endpoints out of the schedule */
@@ -453,13 +453,8 @@ static void postproc_atl_queue(struct isp116x *isp116x)
}
done:
- if (status != -EINPROGRESS) {
- spin_lock(&urb->lock);
- urb->status = status;
- spin_unlock(&urb->lock);
- }
- if (urb->status != -EINPROGRESS || urb->unlinked)
- finish_request(isp116x, ep, urb);
+ if (status != -EINPROGRESS || urb->unlinked)
+ finish_request(isp116x, ep, urb, status);
}
}
@@ -853,7 +848,7 @@ static int isp116x_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
}
if (urb)
- finish_request(isp116x, ep, urb);
+ finish_request(isp116x, ep, urb, status);
done:
spin_unlock_irqrestore(&isp116x->lock, flags);
return rc;
diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index 13d31edd1a8..51817322232 100644
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -62,8 +62,7 @@ __acquires(ohci->lock)
/* urb->complete() can reenter this HCD */
usb_hcd_unlink_urb_from_ep(ohci_to_hcd(ohci), urb);
spin_unlock (&ohci->lock);
- urb->status = status;
- usb_hcd_giveback_urb (ohci_to_hcd(ohci), urb);
+ usb_hcd_giveback_urb(ohci_to_hcd(ohci), urb, status);
spin_lock (&ohci->lock);
/* stop periodic dma if it's not needed */
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index fea6036771f..fd00f1e33fb 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -782,12 +782,12 @@ static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address)
kfree(td);
if (urb) {
- urb->status = -ENODEV;
usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597),
urb);
spin_unlock(&r8a66597->lock);
- usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb);
+ usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb,
+ -ENODEV);
spin_lock(&r8a66597->lock);
}
break;
@@ -1134,10 +1134,8 @@ __releases(r8a66597->lock) __acquires(r8a66597->lock)
urb->start_frame = r8a66597_get_frame(hcd);
usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb);
-
- urb->status = status;
spin_unlock(&r8a66597->lock);
- usb_hcd_giveback_urb(hcd, urb);
+ usb_hcd_giveback_urb(hcd, urb, status);
spin_lock(&r8a66597->lock);
}
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 515152809d3..94d859aa73f 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -436,9 +436,8 @@ static void finish_request(
ep->nextpid = USB_PID_SETUP;
usb_hcd_unlink_urb_from_ep(sl811_to_hcd(sl811), urb);
- urb->status = status;
spin_unlock(&sl811->lock);
- usb_hcd_giveback_urb(sl811_to_hcd(sl811), urb);
+ usb_hcd_giveback_urb(sl811_to_hcd(sl811), urb, status);
spin_lock(&sl811->lock);
/* leave active endpoints in the schedule */
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index db800a434b8..2b379a78d0d 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -518,7 +518,6 @@ static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
unsigned long irqs;
struct usb_hcd *hcd = u132_to_hcd(u132);
urb->error_count = 0;
- urb->status = status;
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
usb_hcd_unlink_urb_from_ep(hcd, urb);
endp->queue_next += 1;
@@ -542,7 +541,7 @@ static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
u132_ring_queue_work(u132, ring, 0);
up(&u132->scheduler_lock);
u132_endp_put_kref(u132, endp);
- usb_hcd_giveback_urb(hcd, urb);
+ usb_hcd_giveback_urb(hcd, urb, status);
return;
}
@@ -558,7 +557,6 @@ static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
unsigned long irqs;
struct usb_hcd *hcd = u132_to_hcd(u132);
urb->error_count = 0;
- urb->status = status;
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
usb_hcd_unlink_urb_from_ep(hcd, urb);
endp->queue_next += 1;
@@ -575,7 +573,7 @@ static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
endp->active = 0;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
kfree(urbq);
- } usb_hcd_giveback_urb(hcd, urb);
+ } usb_hcd_giveback_urb(hcd, urb, status);
return;
}
@@ -719,7 +717,7 @@ static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -771,7 +769,7 @@ static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -874,7 +872,7 @@ static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -911,7 +909,7 @@ static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -983,7 +981,7 @@ static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -1020,7 +1018,7 @@ static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -1080,7 +1078,7 @@ static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -1121,7 +1119,7 @@ static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -1165,7 +1163,7 @@ static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -1202,7 +1200,7 @@ static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -1254,7 +1252,7 @@ static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -1299,7 +1297,7 @@ static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
up(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, urb->status);
+ u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
}
@@ -2428,7 +2426,7 @@ static int dequeue_from_overflow_chain(struct u132 *u132,
list_del(scan);
endp->queue_size -= 1;
urb->error_count = 0;
- usb_hcd_giveback_urb(hcd, urb);
+ usb_hcd_giveback_urb(hcd, urb, 0);
return 0;
} else
continue;
@@ -2472,7 +2470,7 @@ static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
return 0;
} else {
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- u132_hcd_abandon_urb(u132, endp, urb, urb->status);
+ u132_hcd_abandon_urb(u132, endp, urb, status);
return 0;
}
} else {
@@ -2513,7 +2511,7 @@ static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
irqs);
kfree(urbq);
} urb->error_count = 0;
- usb_hcd_giveback_urb(hcd, urb);
+ usb_hcd_giveback_urb(hcd, urb, status);
return 0;
} else if (list_empty(&endp->urb_more)) {
dev_err(&u132->platform_dev->dev, "urb=%p not found in "
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index e46d2b0203c..340d6ed3e6e 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -456,21 +456,6 @@ struct urb_priv {
};
-/*
- * Locking in uhci.c
- *
- * Almost everything relating to the hardware schedule and processing
- * of URBs is protected by uhci->lock. urb->status is protected by
- * urb->lock; that's the one exception.
- *
- * To prevent deadlocks, never lock uhci->lock while holding urb->lock.
- * The safe order of locking is:
- *
- * #1 uhci->lock
- * #2 urb->lock
- */
-
-
/* Some special IDs */
#define PCI_VENDOR_ID_GENESYS 0x17a0
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index bab56726655..e5d60d5b105 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -1480,7 +1480,7 @@ done:
* Finish unlinking an URB and give it back
*/
static void uhci_giveback_urb(struct uhci_hcd *uhci, struct uhci_qh *qh,
- struct urb *urb)
+ struct urb *urb, int status)
__releases(uhci->lock)
__acquires(uhci->lock)
{
@@ -1520,7 +1520,7 @@ __acquires(uhci->lock)
usb_hcd_unlink_urb_from_ep(uhci_to_hcd(uhci), urb);
spin_unlock(&uhci->lock);
- usb_hcd_giveback_urb(uhci_to_hcd(uhci), urb);
+ usb_hcd_giveback_urb(uhci_to_hcd(uhci), urb, status);
spin_lock(&uhci->lock);
/* If the queue is now empty, we can unlink the QH and give up its
@@ -1556,10 +1556,6 @@ static void uhci_scan_qh(struct uhci_hcd *uhci, struct uhci_qh *qh)
if (status == -EINPROGRESS)
break;
- spin_lock(&urb->lock);
- urb->status = status;
- spin_unlock(&urb->lock);
-
/* Dequeued but completed URBs can't be given back unless
* the QH is stopped or has finished unlinking. */
if (urb->unlinked) {
@@ -1569,7 +1565,7 @@ static void uhci_scan_qh(struct uhci_hcd *uhci, struct uhci_qh *qh)
return;
}
- uhci_giveback_urb(uhci, qh, urb);
+ uhci_giveback_urb(uhci, qh, urb, status);
if (status < 0)
break;
}
@@ -1594,7 +1590,7 @@ restart:
qh->is_stopped = 0;
return;
}
- uhci_giveback_urb(uhci, qh, urb);
+ uhci_giveback_urb(uhci, qh, urb, 0);
goto restart;
}
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 03:08:35 +0000