[ALSA] Fix schedule_timeout usage

Use schedule_timeout_{,un}interruptible() instead of
set_current_state()/schedule_timeout() to reduce kernel size.  Also use
human-time conversion functions instead of hard-coded division to avoid
rounding issues.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 2 insertions, 4 deletions

diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index dc87e0144b5a..aea2c47712f9 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -523,8 +523,7 @@ static void snd_cs4281_delay(unsigned int delay)
                         delay = 1;
                 end_time = jiffies + delay;
                 do {
-                        set_current_state(TASK_UNINTERRUPTIBLE);
-                        schedule_timeout(1);
+                        schedule_timeout_uninterruptible(1);
                 } while (time_after_eq(end_time, jiffies));
         } else {
                 udelay(delay);
@@ -533,8 +532,7 @@ static void snd_cs4281_delay(unsigned int delay)
 
 static inline void snd_cs4281_delay_long(void)
 {
-        set_current_state(TASK_UNINTERRUPTIBLE);
-        schedule_timeout(1);
+        schedule_timeout_uninterruptible(1);
 }
 
 static inline void snd_cs4281_pokeBA0(cs4281_t *chip, unsigned long offset, unsigned int val)