From acdb9046b61a63be2e0f760e88272b370d638b35 Mon Sep 17 00:00:00 2001 From: Matthijs Kooijman Date: Fri, 30 Aug 2013 18:45:16 +0200 Subject: [PATCH] staging: dwc2: add missing shift This line extracted the available queue space without properly shifting it. Since the code only cared wether it was zero or not, it worked as expected without the shift, but adding shift makes the code cleaner. While we're here, store the result in a helper variable that was already declared to increase readability a bit more. Signed-off-by: Matthijs Kooijman Acked-by: Paul Zimmerman Signed-off-by: Greg Kroah-Hartman --- drivers/staging/dwc2/hcd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/dwc2/hcd.c b/drivers/staging/dwc2/hcd.c index f11b4f098006..9a1e062b7297 100644 --- a/drivers/staging/dwc2/hcd.c +++ b/drivers/staging/dwc2/hcd.c @@ -1020,7 +1020,9 @@ static void dwc2_process_periodic_channels(struct dwc2_hsotg *hsotg) qh_ptr = hsotg->periodic_sched_assigned.next; while (qh_ptr != &hsotg->periodic_sched_assigned) { tx_status = readl(hsotg->regs + HPTXSTS); - if ((tx_status & TXSTS_QSPCAVAIL_MASK) == 0) { + qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >> + TXSTS_QSPCAVAIL_SHIFT; + if (qspcavail == 0) { no_queue_space = 1; break; } -- 2.20.1