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cxgb4: smt: Add lock for atomic_dec_and_test
The atomic_dec_and_test() is not safe because it is outside of locks. Move the locks of t4_smte_free() to its caller, cxgb4_smt_release() to protect the atomic decrement. Fixes: 3bdb376 ("cxgb4: introduce SMT ops to prepare for SMAC rewrite support") Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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