[PATCH 4.4 35/38] Revert "device property: Keep secondary firmware node secondary by type"

[Greg Kroah-Hartman]

From: Bard Liao <yung-chuan.l...@linux.intel.com>

commit 47f4469970d8861bc06d2d4d45ac8200ff07c693 upstream.

While commit d5dcce0c414f ("device property: Keep secondary firmware
node secondary by type") describes everything correct in its commit
message, the change it made does the opposite and original commit
c15e1bdda436 ("device property: Fix the secondary firmware node handling
in set_primary_fwnode()") was fully correct.

Revert the former one here and improve documentation in the next patch.

Fixes: d5dcce0c414f ("device property: Keep secondary firmware node secondary 
by type")
Signed-off-by: Bard Liao <yung-chuan.l...@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Cc: 5.10+ <sta...@vger.kernel.org> # 5.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/base/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2357,7 +2357,7 @@ void set_primary_fwnode(struct device *d
                if (fwnode_is_primary(fn)) {
                        dev->fwnode = fn->secondary;
                        if (!(parent && fn == parent->fwnode))
-                               fn->secondary = ERR_PTR(-ENODEV);
+                               fn->secondary = NULL;
                } else {
                        dev->fwnode = NULL;
                }