[ALSA] dynamic minors (3/6): store device-specific object pointers dynamically

Instead of storing the pointers to the device-specific structures in an
array, put them into the struct snd_minor, and look them up dynamically.

This makes the device type modules independent of the minor number
encoding.

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

1 files changed, 8 insertions, 2 deletions

diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c
index f88d2e3ee66e..0a65eb2f976b 100644
--- a/sound/core/seq/seq_midi.c
+++ b/sound/core/seq/seq_midi.c
@@ -183,7 +183,10 @@ static int midisynth_subscribe(void *private_data, struct snd_seq_port_subscribe
         struct snd_rawmidi_params params;
 
         /* open midi port */
-        if ((err = snd_rawmidi_kernel_open(msynth->card->number, msynth->device, msynth->subdevice, SNDRV_RAWMIDI_LFLG_INPUT, &msynth->input_rfile)) < 0) {
+        if ((err = snd_rawmidi_kernel_open(msynth->card, msynth->device,
+                                           msynth->subdevice,
+                                           SNDRV_RAWMIDI_LFLG_INPUT,
+                                           &msynth->input_rfile)) < 0) {
                 snd_printd("midi input open failed!!!\n");
                 return err;
         }
@@ -221,7 +224,10 @@ static int midisynth_use(void *private_data, struct snd_seq_port_subscribe *info
         struct snd_rawmidi_params params;
 
         /* open midi port */
-        if ((err = snd_rawmidi_kernel_open(msynth->card->number, msynth->device, msynth->subdevice, SNDRV_RAWMIDI_LFLG_OUTPUT, &msynth->output_rfile)) < 0) {
+        if ((err = snd_rawmidi_kernel_open(msynth->card, msynth->device,
+                                           msynth->subdevice,
+                                           SNDRV_RAWMIDI_LFLG_OUTPUT,
+                                           &msynth->output_rfile)) < 0) {
                 snd_printd("midi output open failed!!!\n");
                 return err;
         }