5c2b216a1c
Apparently it's possible for a mixer to have no devices: $ mixer -f /dev/mixer2 pcm2:mixer: <USB audio> at ? kld snd_uaudio (rec) $ If this is the default sound device, an attempt to change the default unit using mixer -d fails with a segfault because mod_dunit is called with a NULL device pointer, which is dereferenced to get the parent mixer. ctl_dunit seems to be a dummy, i.e., we don't actually need it and can simply pass the mixer to mod_dunit() directly. This patch removes that structure and associated indirection to fix the crash. Reviewed by: christos, hselasky MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D38060 |
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| .. | ||
| Makefile | ||
| Makefile.depend | ||
| mixer.8 | ||
| mixer.c | ||