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Fix crash when error scanning ethercat slaves #56

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toliver opened this issue Oct 26, 2016 · 0 comments

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toliver commented Oct 26, 2016

If the function exits here:

https://github.com/shadow-robot/ros_ethercat/blob/indigo-devel/ros_ethercat_eml/src/ethercat_AL.cxx#L116

then m_slave_handler pointed object is not instantiated here:

https://github.com/shadow-robot/ros_ethercat/blob/indigo-devel/ros_ethercat_eml/src/ethercat_AL.cxx#L121

And generates a segfault with malloc.c: No such file or directory when the destructor tries to delete it here:

https://github.com/shadow-robot/ros_ethercat/blob/indigo-devel/ros_ethercat_eml/src/ethercat_AL.cxx#L72

Probably we should check if (m_slave_handler) before deleting?

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