Fix kernel freeze reproduced when probing stmmac devices on kernel 4.19: Upstream commit 474a31e13a4e9749fb3ee55794d69d0f17ee0998 to fix freeze and upstream commit 8d72ab119f42f25abb393093472ae0ca275088b6 to apply the fix correctly.
Fix kernel freeze reproduced when probing stmmac devices on kernel 4.19: Upstream commit 474a31e13a4e9749fb3ee55794d69d0f17ee0998 to fix freeze and upstream commit 8d72ab119f42f25abb393093472ae0ca275088b6 to apply the fix correctly.