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ALSA: ump: Fix the discard error code from snd_ump_legacy_open()

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commit 49cbb7b7d36ec3ba73ce1daf7ae1d71d435453b8 upstream.

snd_ump_legacy_open() didn't return the error code properly even if it
couldn't open.  Fix it.

Fixes: 0b5288f5fe ("ALSA: ump: Add legacy raw MIDI support")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20240220150843.28630-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Takashi Iwai
2024-02-20 16:08:43 +01:00
committed by Greg Kroah-Hartman
parent 22df6ff560
commit bb06ffbf38
1 changed files with 2 additions and 2 deletions
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4
sound/core/ump.c
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@@ -985,7 +985,7 @@ static int snd_ump_legacy_open(struct snd_rawmidi_substream *substream)
struct snd_ump_endpoint *ump = substream->rmidi->private_data;
int dir = substream->stream;
int group = ump->legacy_mapping[substream->number];
int err;
int err = 0;
mutex_lock(&ump->open_mutex);
if (ump->legacy_substreams[dir][group]) {
@@ -1009,7 +1009,7 @@ static int snd_ump_legacy_open(struct snd_rawmidi_substream *substream)
spin_unlock_irq(&ump->legacy_locks[dir]);
unlock:
mutex_unlock(&ump->open_mutex);
return 0;
return err;
}
static int snd_ump_legacy_close(struct snd_rawmidi_substream *substream)