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srsLTE
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cqi: protect potential div by zero bug

This commit is contained in:
Andre Puschmann 2021-07-27 13:28:42 +02:00
parent d4f1839991
commit b6f8280f67
1 changed files with 7 additions and 1 deletions
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8
lib/src/phy/phch/cqi.c
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@ -589,7 +589,13 @@ uint32_t srsran_cqi_get_sb_idx(uint32_t tti,
*/
int srsran_cqi_hl_get_L(int nof_prb)
{
return (int)ceil((float)nof_prb / cqi_hl_get_subband_size(nof_prb) / cqi_hl_get_bwp_J(nof_prb));
int subband_size = cqi_hl_get_subband_size(nof_prb);
int bwp_J = cqi_hl_get_bwp_J(nof_prb);
if (subband_size <= 0 || bwp_J <= 0) {
ERROR("Invalid parameters");
return SRSRAN_ERROR;
}
return (int)ceil(log2((float)nof_prb / subband_size / bwp_J));
}
bool srsran_cqi_periodic_ri_send(const srsran_cqi_report_cfg_t* cfg, uint32_t tti, srsran_frame_type_t frame_type)