usb: host: u132-hcd: use list_for_each_entry

Use list_for_each_entry() instead of list_for_each() to simplify
the code.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 05c85c7..43d5293 100644 (file)
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -1309,13 +1309,9 @@ static void u132_hcd_ring_work_scheduler(struct work_struct *work)
                u132_ring_put_kref(u132, ring);
                return;
        } else if (ring->curr_endp) {
-               struct u132_endp *last_endp = ring->curr_endp;
-               struct list_head *scan;
-               struct list_head *head = &last_endp->endp_ring;
+               struct u132_endp *endp, *last_endp = ring->curr_endp;
                unsigned long wakeup = 0;
-               list_for_each(scan, head) {
-                       struct u132_endp *endp = list_entry(scan,
-                               struct u132_endp, endp_ring);
+               list_for_each_entry(endp, &last_endp->endp_ring, endp_ring) {
                        if (endp->queue_next == endp->queue_last) {
                        } else if ((endp->delayed == 0)
                                || time_after_eq(jiffies, endp->jiffies)) {
@@ -2393,14 +2389,12 @@ static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
 static int dequeue_from_overflow_chain(struct u132 *u132,
        struct u132_endp *endp, struct urb *urb)
 {
-       struct list_head *scan;
-       struct list_head *head = &endp->urb_more;
-       list_for_each(scan, head) {
-               struct u132_urbq *urbq = list_entry(scan, struct u132_urbq,
-                       urb_more);
+       struct u132_urbq *urbq;
+
+       list_for_each_entry(urbq, &endp->urb_more, urb_more) {
                if (urbq->urb == urb) {
                        struct usb_hcd *hcd = u132_to_hcd(u132);
-                       list_del(scan);
+                       list_del(&urbq->urb_more);
                        endp->queue_size -= 1;
                        urb->error_count = 0;
                        usb_hcd_giveback_urb(hcd, urb, 0);