[ALSA] Fix thinko in cs4231 mce down check

The last patches to replace with schedule_timeout() don't work as expected.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 7 insertions, 6 deletions

diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index ab39860e2404..9785382a5f39 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -401,6 +401,7 @@ static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
 static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
 {
         unsigned long flags;
+        unsigned long end_time;
         int timeout;
 
         spin_lock_irqsave(&chip->lock, flags);
@@ -431,30 +432,30 @@ static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
         msleep(1);
 
         /* check condition up to 250ms */
-        timeout = msecs_to_jiffies(250);
+        end_time = jiffies + msecs_to_jiffies(250);
         while (snd_cs4231_in(chip, CS4231_TEST_INIT) &
                 CS4231_CALIB_IN_PROGRESS) {
 
                 spin_unlock_irqrestore(&chip->lock, flags);
-                if (timeout <= 0) {
+                if (time_after(jiffies, end_time)) {
                         snd_printk("mce_down - "
                                    "auto calibration time out (2)\n");
                         return;
                 }
-                timeout = schedule_timeout(timeout);
+                msleep(1);
                 spin_lock_irqsave(&chip->lock, flags);
         }
 
         /* check condition up to 100ms */
-        timeout = msecs_to_jiffies(100);
+        end_time = jiffies + msecs_to_jiffies(100);
         while (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT) {
                 spin_unlock_irqrestore(&chip->lock, flags);
-                if (timeout <= 0) {
+                if (time_after(jiffies, end_time)) {
                         snd_printk("mce_down - "
                                    "auto calibration time out (3)\n");
                         return;
                 }
-                timeout = schedule_timeout(timeout);
+                msleep(1);
                 spin_lock_irqsave(&chip->lock, flags);
         }
         spin_unlock_irqrestore(&chip->lock, flags);