tree 78c474bb7f979ff85df8bdc2067907c2efd64ebf
parent b249617bab2fff3f33639404d76c92aa5c6ae0f3
author Stefan Berger <stefanb@linux.ibm.com> 1711380233 -0400
committer Stefan Berger <stefanb@linux.ibm.com> 1711392491 -0400

swtpm: cuse: Lock thread_busy_lock reading thread_busy (Coverity)

Coverity is complaining that thread_busy needs to be locked before
reading. For consistency reasons now also lock thread_busy before reading
it. However, in this case it does not make a difference whether this lock
is held when reading thread_busy since file_ops_lock is held when the
thread_busy flag is set and when it is read with a call to this function
(worker_thread_is_busy). Also while the thread is busy no further commands
can be submitted and it can then reset the thread_busy flag without holding
the file_ops_lock.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>