Hi,
as J noticed there are some races in the serial driver.
1) serial table is not protected by locks. kref_get() may be called on freed
memory
2) probe() exposes uninitialized devices
3) disconnect() does not make sure there's no more IO to unbound devices
4) try_module_get() is called with unprotected pointers
5) there's a race between write() and disconnect()
Fixing these required some deeper surgery. Unfortunately I have no devices to
test. J would you be willing to test?
Regards
Oliver
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