Messages in this thread Patch in this message | | | From | Amit Kucheria <> | Subject | [PATCH v2] thermal: Add some error messages | Date | Fri, 12 Jul 2019 02:01:58 +0530 |
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When registering a thermal zone device, we currently return -EINVAL in four cases. This makes it a little hard to debug the real cause of the failure.
Print some error messages to make it easier for developer to figure out what happened.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> --- drivers/thermal/thermal_core.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 46cfb7de4eb2..e1c2c2638219 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1238,17 +1238,26 @@ thermal_zone_device_register(const char *type, int trips, int mask, int count; struct thermal_governor *governor; - if (!type || strlen(type) == 0) + if (!type || strlen(type) == 0) { + pr_err("Error: No thermal zone type defined\n"); return ERR_PTR(-EINVAL); + } - if (type && strlen(type) >= THERMAL_NAME_LENGTH) + if (type && strlen(type) >= THERMAL_NAME_LENGTH) { + pr_err("Error: Thermal zone name (%s) too long, should be under %d chars\n", + type, THERMAL_NAME_LENGTH); return ERR_PTR(-EINVAL); + } - if (trips > THERMAL_MAX_TRIPS || trips < 0 || mask >> trips) + if (trips > THERMAL_MAX_TRIPS || trips < 0 || mask >> trips) { + pr_err("Error: Incorrect number of thermal trips\n"); return ERR_PTR(-EINVAL); + } - if (!ops) + if (!ops) { + pr_err("Error: Thermal zone device ops not defined\n"); return ERR_PTR(-EINVAL); + } if (trips > 0 && (!ops->get_trip_type || !ops->get_trip_temp)) return ERR_PTR(-EINVAL); -- 2.17.1
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