NUM_CT_SUMS
for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
mixer->sums = kcalloc(NUM_CT_SUMS * CHN_NUM, sizeof(void *),