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Commit 934c93b8 authored by Sascha Hauer's avatar Sascha Hauer Committed by Zhang Rui
Browse files

thermal: Add comment explaining test for critical temperature 



The code testing if a temperature should be emulated or not is
not obvious. Add a comment explaining why this test is done.

Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: default avatarMikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent 79e5421c

drivers/thermal/thermal_core.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -498,6 +498,11 @@ int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp) 
			}

			}

		}

		}





		/*

		 * Only allow emulating a temperature when the real temperature

		 * is below the critical temperature so that the emulation code

		 * cannot hide critical conditions.

		 */

		if (!ret && *temp < crit_temp)

		if (!ret && *temp < crit_temp)

			*temp = tz->emul_temperature;

			*temp = tz->emul_temperature;

	}

	}