tools/cpupower: fix error return value in cpupower_write_sysfs()

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[ Upstream commit 57b100d4cf ]

The cpupower_write_sysfs() function currently returns -1 on
write failure, but the function signature indicates it should
return an unsigned int. Returning -1 from an unsigned function
results in a large positive value rather than indicating
an error condition.

Fix this by returning 0 on failure, which is more appropriate
for an unsigned return type and maintains consistency with typical
success/failure semantics where 0 indicates failure and non-zero
indicates success (bytes written).

Link: https://lore.kernel.org/r/20250828063000.803229-1-kaushlendra.kumar@intel.com
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Kaushlendra Kumar 2025-08-28 12:00:00 +05:30 • committed by Greg Kroah-Hartman

parent ffd87e7867

commit eff9be1646

1 changed files with 1 additions and 1 deletions

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tools/power/cpupower/lib/cpupower.c

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