loos bca431a277 Fix the ARM64 build, include the necessary <sys/mutex.h> header.
While here, call device_delete_children() to detach and dealloc all the
existent children and handle the child's detach errors properly.

Reported by:	jenkins, hselasky, ian
Sponsored by:	Rubicon Communications, LLC (Netgate)
2019-12-06 20:05:08 +00:00
..
2019-12-04 16:56:11 +00:00
2019-12-04 16:56:11 +00:00
2019-10-21 18:13:28 +00:00
2019-12-04 16:56:11 +00:00