[ALSA] Fix-up sleeping in sound/usb

USB generic driver,USB USX2Y
Description: Fix-up sleeping in sound/usb. Replace big_mdelay() with
msleep() to guarantee the task delays as expected. This also involved
replacing/removing custom sleep functions.

Patch is compile-tested.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 2 insertions, 2 deletions

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 3eaa08e3e6a6..f2b760d8d77e 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -792,7 +792,7 @@ static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
  */
 static int wait_clear_urbs(snd_usb_substream_t *subs)
 {
-        int timeout = HZ;
+        unsigned long end_time = jiffies + msecs_to_jiffies(1000);
         unsigned int i;
         int alive;
 
@@ -812,7 +812,7 @@ static int wait_clear_urbs(snd_usb_substream_t *subs)
                         break;
                 set_current_state(TASK_UNINTERRUPTIBLE);
                 schedule_timeout(1);
-        } while (--timeout > 0);
+        } while (time_before(jiffies, end_time));
         if (alive)
                 snd_printk(KERN_ERR "timeout: still %d active urbs..\n", alive);
         return 0;