[ALSA] dynamic minors (5/6): reduce maximum number of MIDI devices per card

Modules: ALSA sequencer,Generic drivers

To allow increasing the maximum number of sound cards, we have to limit
the number of sequencer clients per card because client numbers are
still allocated statically.

Reducing the number of clients to four limits the number of sequencer
MIDI ports to 1024 per card.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index c8bd37ee8375..95bd5ae92b92 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -157,7 +157,7 @@ struct snd_seq_client *snd_seq_client_use_ptr(int clientid)
                                 }
                         }
                 } else if (clientid >= 64 && clientid < 128) {
-                        int card = (clientid - 64) / 8;
+                        int card = (clientid - 64) / 4;
                         if (card < snd_ecards_limit) {
                                 if (! card_requested[card]) {
                                         card_requested[card] = 1;
@@ -2208,12 +2208,12 @@ int snd_seq_create_kernel_client(struct snd_card *card, int client_index,
 
         if (callback == NULL)
                 return -EINVAL;
-        if (card && client_index > 7)
+        if (card && client_index > 3)
                 return -EINVAL;
         if (card == NULL && client_index > 63)
                 return -EINVAL;
         if (card)
-                client_index += 64 + (card->number << 3);
+                client_index += 64 + (card->number << 2);
 
         if (down_interruptible(&register_mutex))
                 return -ERESTARTSYS;