[PATCH 1/2] dt-bindings: thermal: correct thermal zone node name limit

Krzysztof Kozlowski krzysztof.kozlowski at linaro.org
Wed Jan 3 06:20:50 PST 2024


Linux kernel uses thermal zone node name during registering thermal
zones and has a hard-coded limit of 20 characters, including terminating
NUL byte.  The bindings expect node names to finish with '-thermal'
which is eight bytes long, thus we have only 11 characters for the reset
of the node name, not 12.

Reported-by: Rob Herring <robh at kernel.org>
Closes: https://lore.kernel.org/all/CAL_JsqKogbT_4DPd1n94xqeHaU_J8ve5K09WOyVsRX3jxxUW3w@mail.gmail.com/
Fixes: 1202a442a31f ("dt-bindings: thermal: Add yaml bindings for thermal zones")
Cc: <stable at vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
---
 Documentation/devicetree/bindings/thermal/thermal-zones.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
index 4a8dabc48170..bbc883fd4044 100644
--- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
+++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
@@ -49,7 +49,7 @@ properties:
       to take when the temperature crosses those thresholds.
 
 patternProperties:
-  "^[a-zA-Z][a-zA-Z0-9\\-]{1,12}-thermal$":
+  "^[a-zA-Z][a-zA-Z0-9\\-]{1,11}-thermal$":
     type: object
     description:
       Each thermal zone node contains information about how frequently it
-- 
2.34.1




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