ALSA: fireworks: remove some stray checks

We checked "err" earlier.  These things seem to be left over code.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
ALSA: fireworks: small leak on error path

There was a typo here so we return directly instead of freeing "hwinfo".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
ALSA: bebob: sizeof() vs ARRAY_SIZE() typo

ARRAY_SIZE() was intended here instead of sizeof().  The
"bridgeco_freq_table" array holds integers so the original condition is
never true.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>