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-rw-r--r--drivers/block/ub.c11
-rw-r--r--drivers/hid/usbhid/hid-core.c9
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw.c2
-rw-r--r--drivers/usb/core/usb.c23
-rw-r--r--drivers/usb/image/microtek.c11
-rw-r--r--drivers/usb/storage/transport.c8
6 files changed, 25 insertions, 39 deletions
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 048d71d244d7..12fb816db7b0 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -1579,7 +1579,7 @@ static void ub_reset_task(struct work_struct *work)
struct ub_dev *sc = container_of(work, struct ub_dev, reset_work);
unsigned long flags;
struct ub_lun *lun;
- int lkr, rc;
+ int rc;
if (!sc->reset) {
printk(KERN_WARNING "%s: Running reset unrequested\n",
@@ -1597,10 +1597,11 @@ static void ub_reset_task(struct work_struct *work)
} else if (sc->dev->actconfig->desc.bNumInterfaces != 1) {
;
} else {
- if ((lkr = usb_lock_device_for_reset(sc->dev, sc->intf)) < 0) {
+ rc = usb_lock_device_for_reset(sc->dev, sc->intf);
+ if (rc < 0) {
printk(KERN_NOTICE
"%s: usb_lock_device_for_reset failed (%d)\n",
- sc->name, lkr);
+ sc->name, rc);
} else {
rc = usb_reset_device(sc->dev);
if (rc < 0) {
@@ -1608,9 +1609,7 @@ static void ub_reset_task(struct work_struct *work)
"usb_lock_device_for_reset failed (%d)\n",
sc->name, rc);
}
-
- if (lkr)
- usb_unlock_device(sc->dev);
+ usb_unlock_device(sc->dev);
}
}
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 03cb494af1c5..f0a0f72238ab 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -102,7 +102,7 @@ static void hid_reset(struct work_struct *work)
struct usbhid_device *usbhid =
container_of(work, struct usbhid_device, reset_work);
struct hid_device *hid = usbhid->hid;
- int rc_lock, rc = 0;
+ int rc = 0;
if (test_bit(HID_CLEAR_HALT, &usbhid->iofl)) {
dev_dbg(&usbhid->intf->dev, "clear halt\n");
@@ -113,11 +113,10 @@ static void hid_reset(struct work_struct *work)
else if (test_bit(HID_RESET_PENDING, &usbhid->iofl)) {
dev_dbg(&usbhid->intf->dev, "resetting device\n");
- rc = rc_lock = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf);
- if (rc_lock >= 0) {
+ rc = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf);
+ if (rc == 0) {
rc = usb_reset_device(hid_to_usb_dev(hid));
- if (rc_lock)
- usb_unlock_device(hid_to_usb_dev(hid));
+ usb_unlock_device(hid_to_usb_dev(hid));
}
clear_bit(HID_RESET_PENDING, &usbhid->iofl);
}
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 8fb92ac78c7b..fa304e5f252a 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -3655,7 +3655,7 @@ void pvr2_hdw_device_reset(struct pvr2_hdw *hdw)
int ret;
pvr2_trace(PVR2_TRACE_INIT,"Performing a device reset...");
ret = usb_lock_device_for_reset(hdw->usb_dev,NULL);
- if (ret == 1) {
+ if (ret == 0) {
ret = usb_reset_device(hdw->usb_dev);
usb_unlock_device(hdw->usb_dev);
} else {
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 399e15fc5052..400fa4cc9a34 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -513,10 +513,7 @@ EXPORT_SYMBOL_GPL(usb_put_intf);
* disconnect; in some drivers (such as usb-storage) the disconnect()
* or suspend() method will block waiting for a device reset to complete.
*
- * Returns a negative error code for failure, otherwise 1 or 0 to indicate
- * that the device will or will not have to be unlocked. (0 can be
- * returned when an interface is given and is BINDING, because in that
- * case the driver already owns the device lock.)
+ * Returns a negative error code for failure, otherwise 0.
*/
int usb_lock_device_for_reset(struct usb_device *udev,
const struct usb_interface *iface)
@@ -527,16 +524,9 @@ int usb_lock_device_for_reset(struct usb_device *udev,
return -ENODEV;
if (udev->state == USB_STATE_SUSPENDED)
return -EHOSTUNREACH;
- if (iface) {
- switch (iface->condition) {
- case USB_INTERFACE_BINDING:
- return 0;
- case USB_INTERFACE_BOUND:
- break;
- default:
- return -EINTR;
- }
- }
+ if (iface && (iface->condition == USB_INTERFACE_UNBINDING ||
+ iface->condition == USB_INTERFACE_UNBOUND))
+ return -EINTR;
while (usb_trylock_device(udev) != 0) {
@@ -550,10 +540,11 @@ int usb_lock_device_for_reset(struct usb_device *udev,
return -ENODEV;
if (udev->state == USB_STATE_SUSPENDED)
return -EHOSTUNREACH;
- if (iface && iface->condition != USB_INTERFACE_BOUND)
+ if (iface && (iface->condition == USB_INTERFACE_UNBINDING ||
+ iface->condition == USB_INTERFACE_UNBOUND))
return -EINTR;
}
- return 1;
+ return 0;
}
EXPORT_SYMBOL_GPL(usb_lock_device_for_reset);
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index 885867a86de8..4541dfcea88f 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -350,17 +350,16 @@ static int mts_scsi_abort(struct scsi_cmnd *srb)
static int mts_scsi_host_reset(struct scsi_cmnd *srb)
{
struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
- int result, rc;
+ int result;
MTS_DEBUG_GOT_HERE();
mts_debug_dump(desc);
- rc = usb_lock_device_for_reset(desc->usb_dev, desc->usb_intf);
- if (rc < 0)
- return FAILED;
- result = usb_reset_device(desc->usb_dev);
- if (rc)
+ result = usb_lock_device_for_reset(desc->usb_dev, desc->usb_intf);
+ if (result == 0) {
+ result = usb_reset_device(desc->usb_dev);
usb_unlock_device(desc->usb_dev);
+ }
return result ? FAILED : SUCCESS;
}
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index 79108d5d3171..2058db41618c 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -1173,10 +1173,9 @@ int usb_stor_Bulk_reset(struct us_data *us)
*/
int usb_stor_port_reset(struct us_data *us)
{
- int result, rc_lock;
+ int result;
- result = rc_lock =
- usb_lock_device_for_reset(us->pusb_dev, us->pusb_intf);
+ result = usb_lock_device_for_reset(us->pusb_dev, us->pusb_intf);
if (result < 0)
US_DEBUGP("unable to lock device for reset: %d\n", result);
else {
@@ -1189,8 +1188,7 @@ int usb_stor_port_reset(struct us_data *us)
US_DEBUGP("usb_reset_device returns %d\n",
result);
}
- if (rc_lock)
- usb_unlock_device(us->pusb_dev);
+ usb_unlock_device(us->pusb_dev);
}
return result;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-29 08:35:49 +0300