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authorLennart Poettering <lennart@poettering.net>2016-11-28 19:41:20 +0100
committerLennart Poettering <lennart@poettering.net>2016-12-01 00:25:51 +0100
commitc9d5c9c0e19eea79ca0f09fe58e5c0b76b8001e2 (patch)
tree90466e55295734e2853cf570eb96d5790d8facc4 /src/shared
parentdc68fed25db7d7a84b4da0e7ed4e73152773a561 (diff)
core: make unit_free() accept NULL pointers
We generally try to make our destructors robust regarding NULL pointers, much in the same way as glibc's free(). Do this also for unit_free(). Follow-up for #4748.
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