Tai-hwa Liang 2acbe67787 sound(4): fixing panic for INVARIANTS kernel ... 3e7bae0821 turns the BUS_READ_IVAR() failure from a warning into a KASSERT. For certain PCI audio devices such like snd_csa(4) and snd_emu10kx(4), the ac97_create() keeps the device handler generated by device_add_child(pci_dev, "pcm"), which is not really a PCI device handler. This in turn causes the subsequent pci_get_subdevice() inside ac97_initmixer() triggering a panic. This patch tries to put a bandaid for the aforementioned pcm device children such that they can use the correct PCI handler(from parent) to avoid a KASSERT panic in the INVARIANTS kernel. Tested with: snd_csa(4), snd_ich(4), snd_emu10kx(4) Reviewed by: imp MFC after: 1 month		2021-04-24 03:27:43 +00:00
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ac97.c	sound(4): fixing panic for INVARIANTS kernel	2021-04-24 03:27:43 +00:00
ac97.h
ac97_if.m
ac97_patch.c
ac97_patch.h
buffer.c
buffer.h
channel.c
channel.h
channel_if.m
dsp.c
dsp.h
feeder.c
feeder.h
feeder_chain.c
feeder_eq.c
feeder_format.c
feeder_if.m
feeder_matrix.c
feeder_mixer.c
feeder_rate.c
feeder_volume.c
g711.h
intpcm.h
matrix.h
matrix_map.h
mixer.c
mixer.h
mixer_if.m
pcm.h
sndstat.c
sndstat.h
sound.c
sound.h
vchan.c
vchan.h