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| author | Pali Rohár <[email protected]> | 2014-11-18 14:56:54 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2014-11-27 03:29:36 +0000 |
| commit | 723493ca59c8d81fed3e7f261165fee493a29ffa (patch) | |
| tree | 966c77b05f2fbdb1e26f439c6587734b8c81baa0 /lib/mpi/mpi-cmp.c | |
| parent | cxl: Name interrupts in /proc/interrupt (diff) | |
| download | kernel-723493ca59c8d81fed3e7f261165fee493a29ffa.tar.gz kernel-723493ca59c8d81fed3e7f261165fee493a29ffa.zip | |
i8k: Fix temperature bug handling in i8k_get_temp()
Static array prev[] was incorrectly initialized. It should be initialized to
some "invalid" temperature value (above I8K_MAX_TEMP).
Next, function should store "invalid" value to prev[] (above I8K_MAX_TEMP),
not valid (= I8K_MAX_TEMP) because whole temperature bug handling will not
work.
And last part, to not break existing detection of temperature sensors, register
them also if i8k report too high temperature (above I8K_MAX_TEMP). This is
needed because some sensors are sometimes turned off (e.g sensor on GPU which
can be turned off/on) and in this case SMM report too high value.
To prevent reporting "invalid" values to userspace, return -EINVAL. In this case
sensors which are currently turned off (e.g optimus/powerexpress/enduro gpu)
are reported as "N/A" by lm-sensors package.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-cmp.c')
0 files changed, 0 insertions, 0 deletions