sound/oss/dmasound: fix build when drivers are mixed =y/=m
When CONFIG_DMASOUND_ATARI=m and CONFIG_DMASOUND_Q40=y (or vice versa), dmasound_core.o can be built without dmasound_deinit() being defined, causing a build error: ERROR: modpost: "dmasound_deinit" [sound/oss/dmasound/dmasound_atari.ko] undefined! Modify dmasound_core.c and dmasound.h so that dmasound_deinit() is always available. The mixed modes (=y/=m) also mean that several variables and structs have to be declared in all cases. Suggested-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Link: lore.kernel.org/r/202204032138.EFT9qGEd-lkp@intel.com Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: alsa-devel@alsa-project.org Link: https://lore.kernel.org/r/20220405234118.24830-1-rdunlap@infradead.orgSigned-off-by: Takashi Iwai <tiwai@suse.de>
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