Infinite loop in the AVL tree

[pavel-kirienko]

It has been reported that there is allegedly an infinite loop in the AVL tree:

https://forum.uavcan.org/t/libuavcan-cubemx-freertos-systemworkbenchforstm32/430/9?u=pavel.kirienko

[dpslwk]

fix suggested by kolos450 in the linked thread got this working for me on an STM32L433 under FreeRTOS

[pavel-kirienko]

For reference, this is the suggested fix copy-pasted from the forum verbatim:

Hi. I've got the same issue. There is a typo in the appendToEndOf method:

target = head->equal_keys;

should be

target = target->equal_keys;

The case happens when the driver is busy and all the frames produced from a single message are sent to a linked list.

@thirtytwobits should we just go ahead and fix this, seeing as @Zarkopafilis is unavailable?

[pavel-kirienko]

Related: https://forum.uavcan.org/t/how-to-support-getnodeinfo-and-getdatatypeinfo-on-stm32/577

[thirtytwobits]

I'll take a look

[thirtytwobits]

All fixed. Thanks for the bug report and sorry for the slow response.