CVS commit: src/sys/dev

["Paul Goyette" <pgoyette%netbsd.org@localhost>]

Module Name:    src
Committed By:   pgoyette
Date:           Fri Jan  6 09:32:08 UTC 2017

Modified Files:
        src/sys/dev: spkr.c spkr_audio.c spkrvar.h
        src/sys/dev/isa: spkr_pcppi.c

Log Message:
Implement a common spkr_detach() function and call it from the
attachment-specific detach functions.  Returns EBUSY if the
device instance is busy, based on whether or not a sc->sc_inbuf
is allocated.  The buffer is malloc()d at spkropen time, and is
free()d in spkrclose().

Now we can actually implement the MODULE_CMD_FINI command and
unload the driver at will.

Addresses my PR kern/51785


To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/dev/spkr.c src/sys/dev/spkrvar.h
cvs rdiff -u -r1.2 -r1.3 src/sys/dev/spkr_audio.c
cvs rdiff -u -r1.8 -r1.9 src/sys/dev/isa/spkr_pcppi.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.