4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> commit f4d430db17b4ef4e9c3c352a04b2fe3c93011978 upstream. cpu_hwmon is unsupported on CPUs without loongson_chiptemp register and csr. Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/platform/mips/cpu_hwmon.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/platform/mips/cpu_hwmon.c +++ b/drivers/platform/mips/cpu_hwmon.c @@ -164,6 +164,9 @@ static int __init loongson_hwmon_init(vo goto fail_hwmon_device_register; } + if (!csr_temp_enable && !loongson_chiptemp[0]) + return -ENODEV; + nr_packages = loongson_sysconf.nr_cpus / loongson_sysconf.cores_per_package;
