[PATCH] of: overlay: fix overly strict check for symbols

[Michael Riesch <michael.riesch@wolfvision.net>]

The recent patch "of: overlay: improve error handling in
of_overlay_apply_tree" introduced overly strict checks for symbols
in the root device tree and the overlay. However, it is legal for
both to have no symbols. Fix the checks in order to implement the
status quo.

Fixes: bc475fd88810 ("of: overlay: improve error handling in of_overlay_apply_tree")
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
---
 drivers/of/overlay.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index 0fc440fdcf..9d112b67f1 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -131,12 +131,12 @@ static int of_overlay_apply_symbols(struct device_node *root,
 
 	if (!overlay_symbols) {
 		pr_debug("overlay doesn't have a __symbols__ node\n");
-		return -EINVAL;
+		return 0;
 	}
 
 	if (!root_symbols) {
 		pr_info("root doesn't have a __symbols__ node\n");
-		return -EINVAL;
+		return 0;
 	}
 
 	list_for_each_entry(prop, &overlay_symbols->properties, list) {
-- 
2.30.2