rrc: fix potential division by zero

5 years ago · 248e2b5f7e
parent ca3b76df6e
commit 248e2b5f7e
1 changed files with 2 additions and 1 deletions
--- a/srsenb/src/stack/rrc/rrc_cell_cfg.cc
+++ b/srsenb/src/stack/rrc/rrc_cell_cfg.cc
@ -187,7 +187,8 @@ bool cell_ctxt_dedicated_list::alloc_cqi_resources(uint32_t ue_cc_idx, uint32_t
  const auto& pcell_pucch_cfg   = get_ue_cc_idx(UE_PCELL_CC_IDX)->cell_common.sib2.rr_cfg_common.pucch_cfg_common;
  uint32_t    c                 = SRSLTE_CP_ISNORM(cfg.cell.cp) ? 3 : 2;
  uint32_t    delta_pucch_shift = pcell_pucch_cfg.delta_pucch_shift.to_number();
-  uint32_t    max_users         = 12 * c / delta_pucch_shift;
+  delta_pucch_shift             = SRSLTE_MAX(1, delta_pucch_shift);
+  uint32_t max_users            = 12 * c / delta_pucch_shift;

  // Allocate all CQI resources for all carriers now
  // Find freq-time resources with least number of users