ALSA: seq: Check UMP support for midi_version change

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commit 8765429279 upstream.

When the kernel is built without UMP support but a user-space app
requires the midi_version > 0, the kernel should return an error.
Otherwise user-space assumes as if it were possible to deal,
eventually hitting serious errors later.

Fixes: 46397622a3 ("ALSA: seq: Add UMP support")
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20241231145358.21946-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Takashi Iwai 2024-12-31 15:53:58 +01:00 • committed by Greg Kroah-Hartman

parent 199f045287

commit 396964d45c

1 changed files with 10 additions and 4 deletions

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sound/core/seq/seq_clientmgr.c

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