powerpc/pseries: Fix of_node_put() underflow during reconfig remove
authorLaurent Vivier <lvivier@redhat.com>
Fri, 21 Jul 2017 14:51:39 +0000 (16:51 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 7 Aug 2017 01:59:40 +0000 (18:59 -0700)
commit 4fd1bd443e80b12f0a01a45fb9a793206b41cb72 upstream.

As for commit 68baf692c435 ("powerpc/pseries: Fix of_node_put()
underflow during DLPAR remove"), the call to of_node_put() must be
removed from pSeries_reconfig_remove_node().

dlpar_detach_node() and pSeries_reconfig_remove_node() both call
of_detach_node(), and thus the node should not be released in both
cases.

Fixes: 0829f6d1f69e ("of: device_node kobject lifecycle fixes")
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/powerpc/platforms/pseries/reconfig.c

index cc66c49..666ad06 100644 (file)
@@ -82,7 +82,6 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
 
        of_detach_node(np);
        of_node_put(parent);
-       of_node_put(np); /* Must decrement the refcount */
        return 0;
 }