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xhci: Convert to use list_count_nodes() 

The list API provides the list_count_nodes() to help with counting
existing nodes in the list. Utilise it.

Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221130134838.23805-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2022-11-30 15:48:38 +02:00 committed by Greg Kroah-Hartman
parent 66eccb5274
commit 5220cb493b
1 changed files with 2 additions and 5 deletions
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7
drivers/usb/host/xhci-ring.c
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@ -2528,7 +2528,6 @@ static int handle_tx_event(struct xhci_hcd *xhci,
union xhci_trb *ep_trb;
int status = -EINPROGRESS;
struct xhci_ep_ctx *ep_ctx;
struct list_head *tmp;
u32 trb_comp_code;
int td_num = 0;
bool handling_skipped_tds = false;
@ -2582,10 +2581,8 @@ static int handle_tx_event(struct xhci_hcd *xhci,
}
/* Count current td numbers if ep->skip is set */
if (ep->skip) {
list_for_each(tmp, &ep_ring->td_list)
td_num++;
}
if (ep->skip)
td_num += list_count_nodes(&ep_ring->td_list);
/* Look for common error cases */
switch (trb_comp_code) {