ALSA: mixart: don't print an unintialized variable on error

My static checker complains that "resp" could be unitialized on error
when we print its value.

Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Takashi Sakamoto <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
1 file changed