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hwmon: Prevent some divide by zeros in FAN_TO_REG()
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
hwmon
/
sis5595.c
diff --git
a/drivers/hwmon/sis5595.c
b/drivers/hwmon/sis5595.c
index 1404e6319deb3cf918c1874f1be8b09b85902d65..72a889702f0dc091b895f653ce39a540aa40bf3b 100644
(file)
--- a/
drivers/hwmon/sis5595.c
+++ b/
drivers/hwmon/sis5595.c
@@
-141,6
+141,8
@@
static inline u8 FAN_TO_REG(long rpm, int div)
{
if (rpm <= 0)
return 255;
+ if (rpm > 1350000)
+ return 1;
return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
}