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| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2024-06-14 16:40:15 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-08-03 08:49:43 +0200 |
| commit | 592e292f866189aa1f7064a0e72963532f0ba8ef (patch) | |
| tree | 6dfbc974185abb9524c308651f163ab7d8b9e16d /drivers | |
| parent | 3e863259c4bf3e719eb9de101bf403b67b551b2f (diff) | |
| download | linux-592e292f866189aa1f7064a0e72963532f0ba8ef.tar.gz linux-592e292f866189aa1f7064a0e72963532f0ba8ef.tar.bz2 linux-592e292f866189aa1f7064a0e72963532f0ba8ef.zip | |
platform: mips: cpu_hwmon: Disable driver on unsupported hardware
commit f4d430db17b4ef4e9c3c352a04b2fe3c93011978 upstream.
cpu_hwmon is unsupported on CPUs without loongson_chiptemp
register and csr.
Cc: stable@vger.kernel.org
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/mips/cpu_hwmon.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/platform/mips/cpu_hwmon.c b/drivers/platform/mips/cpu_hwmon.c index d8c5f9195f85..2ac2f31090f9 100644 --- a/drivers/platform/mips/cpu_hwmon.c +++ b/drivers/platform/mips/cpu_hwmon.c @@ -139,6 +139,9 @@ static int __init loongson_hwmon_init(void) csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) & LOONGSON_CSRF_TEMP; + if (!csr_temp_enable && !loongson_chiptemp[0]) + return -ENODEV; + nr_packages = loongson_sysconf.nr_cpus / loongson_sysconf.cores_per_package; |