1 files changed, 2 insertions, 0 deletions

diff --git a/sound/isa/ad1848/ad1848_lib.c b/sound/isa/ad1848/ad1848_lib.c
index 330b5ced01aa..18355fd66cb5 100644
--- a/sound/isa/ad1848/ad1848_lib.c
+++ b/sound/isa/ad1848/ad1848_lib.c
@@ -236,7 +236,9 @@ static void snd_ad1848_mce_down(struct snd_ad1848 *chip)
          * calibration process to start. Needs upto 5 sample periods on AD1848
          * which at the slowest possible rate of 5.5125 kHz means 907 us.
          */
+        spin_unlock_irqrestore(&chip->reg_lock, flags);
         msleep(1);
+        spin_lock_irqsave(&chip->reg_lock, flags);
 
         snd_printdd("(2) jiffies = %lu\n", jiffies);