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MFC r286887: Using the error return code documented in the comment.

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Though there is no direct midi_uninit() caller amongst existing drivers
at this moment, a quick experiment indicates that EBUSY gives users more
precise error message once drivers start to honour this result.  For example,
emu_midi_detach() should check the result of mpu401_uninit() and block
module unloading if there is any MIDI I/O in progress.
This commit is contained in:
avatar 2015-09-01 22:35:53 +00:00
parent 2fa34e5809
commit 49c820db70
1 changed files with 1 additions and 1 deletions
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sys/dev/sound/midi/midi.c
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@ -403,7 +403,7 @@ midi_uninit(struct snd_midi *m)
{
int err;
err = ENXIO;
err = EBUSY;
mtx_lock(&midistat_lock);
mtx_lock(&m->lock);
if (m->busy) {