Commits
Giuseppe CAVALLARO committed f95f4045c73
stmmac: set ptp_clock to NULL while unregister This is to properly put to NULL the ptp_clock while un-register the PTP support. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>