From: Danylo Vodopianov <dvo-...@napatech.com>
Fix CID issue 457736 divide by 0. It was avoided by
adding adittional checking on the return value
for function.
Fixes: effa04693274 ("net/ntnic: add statistics")
Signed-off-by: Danylo Vodopianov <dvo-...@napatech.com>
---
drivers/net/ntnic/nthw/stat/nthw_stat.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ntnic/nthw/stat/nthw_stat.c
b/drivers/net/ntnic/nthw/stat/nthw_stat.c
index 2ddef052a5..9bb97bf311 100644
--- a/drivers/net/ntnic/nthw/stat/nthw_stat.c
+++ b/drivers/net/ntnic/nthw/stat/nthw_stat.c
@@ -319,6 +319,10 @@ int nthw_stat_init(nthw_stat_t *p, nthw_fpga_t *p_fpga,
int n_instance)
/* Set the sliding windows size for port load */
if (p->mp_fld_load_bin) {
uint32_t rpp = nthw_fpga_get_product_param(p_fpga,
NT_RPP_PER_PS, 0);
+ if (rpp == 0) {
+ NT_LOG(ERR, NTHW, "RPP has wrong value"); /* Avoid
divide by 0 */
+ return -1;
+ }
uint32_t bin =
(uint32_t)(((PORT_LOAD_WINDOWS_SIZE * 1000000000000ULL)
/ (32ULL * rpp)) -
1ULL);
--
2.47.1
