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| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-01-23 14:20:17 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-25 10:59:07 +0100 |
| commit | a54cfae3c7727c2c172fdcd5886b4235b833da6c (patch) | |
| tree | 29ea7978c4daa6506ad8d415ffe533dbcabdda58 /drivers/usb/host/xhci-ring.c | |
| parent | 5278204c98188ac9fd2e75b936eec1015d062a75 (diff) | |
| download | lwn-a54cfae3c7727c2c172fdcd5886b4235b833da6c.tar.gz lwn-a54cfae3c7727c2c172fdcd5886b4235b833da6c.zip | |
usb: host: xhci: convert to list_for_each_entry_safe()
instead of using while(!list_empty()) followed by list_first_entry(), we
can actually use list_for_each_entry_safe().
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 92715b954d86..059825bf4b26 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -808,11 +808,11 @@ remove_finished_td: static void xhci_kill_ring_urbs(struct xhci_hcd *xhci, struct xhci_ring *ring) { struct xhci_td *cur_td; + struct xhci_td *tmp; - while (!list_empty(&ring->td_list)) { - cur_td = list_first_entry(&ring->td_list, - struct xhci_td, td_list); + list_for_each_entry_safe(cur_td, tmp, &ring->td_list, td_list) { list_del_init(&cur_td->td_list); + if (!list_empty(&cur_td->cancelled_td_list)) list_del_init(&cur_td->cancelled_td_list); @@ -828,6 +828,7 @@ static void xhci_kill_endpoint_urbs(struct xhci_hcd *xhci, int slot_id, int ep_index) { struct xhci_td *cur_td; + struct xhci_td *tmp; struct xhci_virt_ep *ep; struct xhci_ring *ring; @@ -853,12 +854,12 @@ static void xhci_kill_endpoint_urbs(struct xhci_hcd *xhci, slot_id, ep_index); xhci_kill_ring_urbs(xhci, ring); } - while (!list_empty(&ep->cancelled_td_list)) { - cur_td = list_first_entry(&ep->cancelled_td_list, - struct xhci_td, cancelled_td_list); - list_del_init(&cur_td->cancelled_td_list); + list_for_each_entry_safe(cur_td, tmp, &ep->cancelled_td_list, + cancelled_td_list) { + list_del_init(&cur_td->cancelled_td_list); inc_td_cnt(cur_td->urb); + if (last_td_in_urb(cur_td)) xhci_giveback_urb_in_irq(xhci, cur_td, -ESHUTDOWN); } |