IB/hfi1: fix a locking bug
mutex_trylock() returns zero on failure, not EBUSY. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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mutex_trylock() returns zero on failure, not EBUSY. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>