Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 22:21:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

hwmon: (ltc2992) Avoid division by zero

Browse Source 
Do not allow setting shunt resistor to 0. This results in a division by
zero when performing current value computations based on input voltages
and connected resistor values.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20231011135754.13508-1-antoniu.miclaus@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Antoniu Miclaus 2023-10-11 16:57:53 +03:00 committed by Guenter Roeck
parent b92b2984a5
commit 10b0290204
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/hwmon/ltc2992.c
View File

@ -875,8 +875,12 @@ static int ltc2992_parse_dt(struct ltc2992_state *st)
}
ret = fwnode_property_read_u32(child, "shunt-resistor-micro-ohms", &val);
if (!ret)
if (!ret) {
if (!val)
return dev_err_probe(&st->client->dev, -EINVAL,
"shunt resistor value cannot be zero\n");
st->r_sense_uohm[addr] = val;
}
}
return 0;