ALSA: seq: ump: Fix seq port updates per FB info notify

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update_port_infos() is called when a UMP FB Info update notification
is received, and this function is supposed to update the attributes of
the corresponding sequencer port.  However, the function had a few
issues and it brought to the incorrect states.  Namely:

- It tried to get a wrong sequencer info for the update without
  correcting the port number with the group-offset 1
- The loop exited immediately when a sequencer port isn't present;
  this ended up with the truncation if a sequencer port in the middle
  goes away

This patch addresses those bugs.

Fixes: 4a16a3af05 ("ALSA: seq: ump: Handle FB info update")
Link: https://patch.msgid.link/20241128170423.23351-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Takashi Iwai 2024-11-28 18:04:22 +01:00

parent 2e5bf5b6d2

commit aaa55faa24

1 changed files with 3 additions and 3 deletions

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sound/core/seq/seq_ump_client.c

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