>From 89648c1532e860b986fc5286245c404ddbe45b35 Mon Sep 17 00:00:00 2001 From: Sunny Kumar Date: Wed, 24 Jun 2015 19:50:30 +0530 Subject: [PATCH 1/1] usb: usleep_range is preferred over udelay where wakeup is flexible According to Documentation/timers/timers-howto.txt" udelay() is only called once from a place where sleeping is allowed. We can replace it with a call to usleep_range() with a reasonable upper limit. Signed-off-by: Sunny Kumar --- drivers/usb/storage/transport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index 540add2..7e397f8 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -1111,7 +1111,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) * command phase and the data phase. Some devices need a little * more than that, probably because of clock rate inaccuracies. */ if (unlikely(us->fflags & US_FL_GO_SLOW)) - udelay(125); + usleep_range(125, 200); if (transfer_length) { unsigned int pipe = srb->sc_data_direction == DMA_FROM_DEVICE ? -- 2.1.4