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| author |   Anirudh Rayabharam <mail@anirudhrb.com> | 2021-08-21 00:31:22 +0530 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-26 13:29:10 +0200 |
| commit | 5289253b01d7bfa5e8ae23fdc2482acacd301e7d (patch) | |
| tree | 8f9af24fbeb7392e021703cdd2a6bf048bc1529d /drivers/usb | |
| parent | usbip: give back URBs for unsent unlink requests during cleanup (diff) | |
| download | linux-dev-5289253b01d7bfa5e8ae23fdc2482acacd301e7d.tar.xz linux-dev-5289253b01d7bfa5e8ae23fdc2482acacd301e7d.zip | |
usbip: clean up code in vhci_device_unlink_cleanup
The cleanup code for unlink_tx and unlink_rx lists is almost the same.
So, extract it into a new function and call it for both unlink_rx and
unlink_tx. Also, remove unnecessary log messages.
Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Link: https://lore.kernel.org/r/20210820190122.16379-3-mail@anirudhrb.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/usbip/vhci_hcd.c | 52 |
1 files changed, 12 insertions, 40 deletions
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c index 190bd3d1c1f0..b5b31a1d40b6 100644 --- a/drivers/usb/usbip/vhci_hcd.c +++ b/drivers/usb/usbip/vhci_hcd.c @@ -945,7 +945,8 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) return 0; } -static void vhci_device_unlink_cleanup(struct vhci_device *vdev) +static void vhci_cleanup_unlink_list(struct vhci_device *vdev, + struct list_head *unlink_list) { struct vhci_hcd *vhci_hcd = vdev_to_vhci_hcd(vdev); struct usb_hcd *hcd = vhci_hcd_to_hcd(vhci_hcd); @@ -956,12 +957,9 @@ static void vhci_device_unlink_cleanup(struct vhci_device *vdev) spin_lock_irqsave(&vhci->lock, flags); spin_lock(&vdev->priv_lock); - list_for_each_entry_safe(unlink, tmp, &vdev->unlink_tx, list) { + list_for_each_entry_safe(unlink, tmp, unlink_list, list) { struct urb *urb; - /* give back urb of unsent unlink request */ - pr_info("unlink cleanup tx %lu\n", unlink->unlink_seqnum); - urb = pickup_urb_and_free_priv(vdev, unlink->unlink_seqnum); if (!urb) { list_del(&unlink->list); @@ -986,45 +984,19 @@ static void vhci_device_unlink_cleanup(struct vhci_device *vdev) kfree(unlink); } - while (!list_empty(&vdev->unlink_rx)) { - struct urb *urb; - - unlink = list_first_entry(&vdev->unlink_rx, struct vhci_unlink, - list); - - /* give back URB of unanswered unlink request */ - pr_info("unlink cleanup rx %lu\n", unlink->unlink_seqnum); - - urb = pickup_urb_and_free_priv(vdev, unlink->unlink_seqnum); - if (!urb) { - pr_info("the urb (seqnum %lu) was already given back\n", - unlink->unlink_seqnum); - list_del(&unlink->list); - kfree(unlink); - continue; - } - - urb->status = -ENODEV; - - usb_hcd_unlink_urb_from_ep(hcd, urb); - - list_del(&unlink->list); - - spin_unlock(&vdev->priv_lock); - spin_unlock_irqrestore(&vhci->lock, flags); - - usb_hcd_giveback_urb(hcd, urb, urb->status); - - spin_lock_irqsave(&vhci->lock, flags); - spin_lock(&vdev->priv_lock); - - kfree(unlink); - } - spin_unlock(&vdev->priv_lock); spin_unlock_irqrestore(&vhci->lock, flags); } +static void vhci_device_unlink_cleanup(struct vhci_device *vdev) +{ + /* give back URB of unsent unlink request */ + vhci_cleanup_unlink_list(vdev, &vdev->unlink_tx); + + /* give back URB of unanswered unlink request */ + vhci_cleanup_unlink_list(vdev, &vdev->unlink_rx); +} + /* * The important thing is that only one context begins cleanup. * This is why error handling and cleanup become simple. |