count = of_property_count_u8_elems(child, "aspeed,fan-tach-ch");
if (count < 1)
return -EINVAL;
- fan_tach_ch = devm_kzalloc(dev, sizeof(*fan_tach_ch) * count,
+ fan_tach_ch = devm_kcalloc(dev, count, sizeof(*fan_tach_ch),
GFP_KERNEL);
if (!fan_tach_ch)
return -ENOMEM;