The acard->wss pointer is uninitialized in this function
which leads to crash during chip PNP detection.
Signed-off-by: NKrzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: NRene Herman <rene.herman@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>