[2.5.42] compile error in sound/isa/opl3sa2.c

[Jochen Hein]

  gcc -Wp,-MD,sound/isa/.opl3sa2.o.d -D__KERNEL__ -Iinclude -Wall
  -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer
  -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2
  -march=i686 -Iarch/i386/mach-generic -nostdinc -iwithprefix include
  -DMODULE   -DKBUILD_BASENAME=opl3sa2   -c -o sound/isa/opl3sa2.o
  sound/isa/opl3sa2.c
sound/isa/opl3sa2.c: In function `snd_opl3sa2_isapnp':
sound/isa/opl3sa2.c:643: warning: passing arg 1 of `isapnp_find_dev'
  from incompatible pointer type
sound/isa/opl3sa2.c:643: warning: assignment from incompatible pointer
  type
sound/isa/opl3sa2.c:644: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:650: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:653: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:655: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:657: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:659: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:661: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:663: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:665: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:667: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:668: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:672: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:673: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:674: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:675: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:676: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:677: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:678: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:679: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c: In function `snd_opl3sa2_deactivate':
sound/isa/opl3sa2.c:690: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c: In function `alsa_card_opl3sa2_init':
sound/isa/opl3sa2.c:893: warning: passing arg 2 of
  `isapnp_probe_cards' from incompatible pointer type
make[3]: *** [sound/isa/opl3sa2.o] Fehler 1
make[2]: *** [sound/isa] Fehler 2
make[1]: *** [sound] Fehler 2
make[1]: Leaving directory `/usr/src/linux-2.5.42'
make: *** [stamp-build] Fehler 2
/usr/bin/make -f sound/isa/Makefile
  gcc -Wp,-MD,sound/isa/.opl3sa2.o.d -D__KERNEL__ -Iinclude -Wall
  -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer
  -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2
  -march=i686 -Iarch/i386/mach-generic -nostdinc -iwithprefix include
  -DMODULE   -DKBUILD_BASENAME=opl3sa2   -c -o sound/isa/opl3sa2.o
  sound/isa/opl3sa2.c
sound/isa/opl3sa2.c: In function `snd_opl3sa2_isapnp':
sound/isa/opl3sa2.c:643: warning: passing arg 1 of `isapnp_find_dev'
  from incompatible pointer type
sound/isa/opl3sa2.c:643: warning: assignment from incompatible pointer
  type
sound/isa/opl3sa2.c:644: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:650: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:653: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:655: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:657: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:659: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:661: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:663: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:665: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:667: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:668: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:672: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:673: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:674: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:675: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:676: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:677: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:678: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c:679: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c: In function `snd_opl3sa2_deactivate':
sound/isa/opl3sa2.c:690: dereferencing pointer to incomplete type
sound/isa/opl3sa2.c: In function `alsa_card_opl3sa2_init':
sound/isa/opl3sa2.c:893: warning: passing arg 2 of
  `isapnp_probe_cards' from incompatible pointer type
make[3]: *** [sound/isa/opl3sa2.o] Fehler 1
make[2]: *** [sound/isa] Fehler 2
make[1]: *** [sound] Fehler 2
make[1]: Leaving directory `/usr/src/linux-2.5.42'
make: *** [stamp-build] Fehler 2