1 files changed, 5 insertions, 3 deletions

diff --git a/sound/firewire/fireworks/fireworks_command.c b/sound/firewire/fireworks/fireworks_command.c
index d5ea7051ad0c..166f80584c2a 100644
--- a/sound/firewire/fireworks/fireworks_command.c
+++ b/sound/firewire/fireworks/fireworks_command.c
@@ -22,7 +22,8 @@
  * Information commands. But this module don't use them.
  */
 
-#define EFW_TRANSACTION_SEQNUM_MAX      ((u32)~0)
+#define KERNEL_SEQNUM_MIN       (SND_EFW_TRANSACTION_USER_SEQNUM_MAX + 2)
+#define KERNEL_SEQNUM_MAX       ((u32)~0)
 
 /* for clock source and sampling rate */
 struct efc_clock {
@@ -120,8 +121,9 @@ efw_transaction(struct snd_efw *efw, unsigned int category,
 
         /* to keep consistency of sequence number */
         spin_lock(&efw->lock);
-        if (efw->seqnum + 2 >= EFW_TRANSACTION_SEQNUM_MAX)
-                efw->seqnum = 0;
+        if ((efw->seqnum < KERNEL_SEQNUM_MIN) ||
+            (efw->seqnum >= KERNEL_SEQNUM_MAX - 2))
+                efw->seqnum = KERNEL_SEQNUM_MIN;
         else
                 efw->seqnum += 2;
         seqnum = efw->seqnum;