sound: Deparenthesize negative error returns

Make the returns a bit more kernel standard style.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc sound/isa/wavefront/wavefront_fx.c
Simple merge

diff --cc sound/isa/wavefront/wavefront_synth.c
Simple merge

diff --cc sound/oss/dev_table.c
Simple merge

diff --cc sound/oss/v_midi.c
Simple merge