Commit 9fec272c authored by Frank Rowand's avatar Frank Rowand Committed by Stefan Bader

powerpc/pseries: add of_node_put() in dlpar_detach_node()

BugLink: https://bugs.launchpad.net/bugs/1818813

[ Upstream commit 5b3f5c40 ]

The previous commit, "of: overlay: add missing of_node_get() in
__of_attach_node_sysfs" added a missing of_node_get() to
__of_attach_node_sysfs().  This results in a refcount imbalance
for nodes attached with dlpar_attach_node().  The calling sequence
from dlpar_attach_node() to __of_attach_node_sysfs() is:

   dlpar_attach_node()
      of_attach_node()
         __of_attach_node_sysfs()

For more detailed description of the node refcount, see
commit 68baf692 ("powerpc/pseries: Fix of_node_put() underflow
during DLPAR remove").
Tested-by: default avatarAlan Tull <atull@kernel.org>
Acked-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: default avatarFrank Rowand <frank.rowand@sony.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarJuerg Haefliger <juergh@canonical.com>
Signed-off-by: default avatarKhalid Elmously <khalid.elmously@canonical.com>
parent 725b61df
......@@ -280,6 +280,8 @@ int dlpar_detach_node(struct device_node *dn)
if (rc)
return rc;
of_node_put(dn);
return 0;
}
......
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