[mynewt-core] 18/19: sensors/tcs34725: Fix untrusted divisor

[janc]

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janc pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-core.git

commit 868bd57a90df20e1246fef402aa63d1f9758a65b
Author: Magdalena Kasenberg <magdalena.kasenb...@codecoup.pl>
AuthorDate: Fri Feb 26 11:17:29 2021 +0100

    sensors/tcs34725: Fix untrusted divisor
    
    Coverity issues 218750, 218752.
---
 hw/drivers/sensors/tcs34725/src/tcs34725.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/drivers/sensors/tcs34725/src/tcs34725.c 
b/hw/drivers/sensors/tcs34725/src/tcs34725.c
index 6789491..fb8202b 100644
--- a/hw/drivers/sensors/tcs34725/src/tcs34725.c
+++ b/hw/drivers/sensors/tcs34725/src/tcs34725.c
@@ -852,7 +852,7 @@ tcs34725_calc_colortemp_lux(struct sensor_itf *itf,
     g_comp = scd->scd_g - scd->scd_ir;
     b_comp = scd->scd_b - scd->scd_ir;
 
-    scd->scd_cratio = (float)scd->scd_ir / (float)scd->scd_c;
+    scd->scd_cratio = scd->scd_c == 0 ? 1.0f : (float)scd->scd_ir / 
(float)scd->scd_c;
 
     scd->scd_saturation = ((256 - atime) > 63) ? 65535 : 1024 * (256 - atime);