oss/pss: fix initdata reference used in exit:

Error: ./sound/oss/pss.o .exit.text refers to 000000000000003f R_X86_64_PC32     .init.data+0x0000000000000003
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>