[ACPI] fix acpi_os_wait_sempahore() finite timeout case (AE_TIME warning)
Before this fix, the finite timeout case behaved like the no-timeout (trylock) case. http://bugzilla.kernel.org/show_bug.cgi?id=4588 Signed-off-by: Luming Yu <luming.yu@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -836,7 +836,7 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
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static const int quantum_ms = 1000 / HZ;
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ret = down_trylock(sem);
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for (i = timeout; (i > 0 && ret < 0); i -= quantum_ms) {
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for (i = timeout; (i > 0 && ret != 0); i -= quantum_ms) {
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schedule_timeout_interruptible(1);
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ret = down_trylock(sem);
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}
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