[PATCH v3 1/3] powerpc/numa: Simplify find_primary_domain_index

Initialize the return value once and use a single exit path in
find_primary_domain_index().

This is a small cleanup that keeps the existing behavior unchanged while
making the control flow easier to follow.

Signed-off-by: Srikar Dronamraju <[email protected]>
---
Changelog from v1:
- Handle comments from Christophe Leroy

 arch/powerpc/mm/numa.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f4cf3ae036de..c44a80d8fc11 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -432,7 +432,7 @@ static void __init initialize_form2_numa_distance_lookup_table(void)
 
 static int __init find_primary_domain_index(void)
 {
-	int index;
+	int index = -1;
 	struct device_node *root;
 
 	/*
@@ -502,12 +502,9 @@ static int __init find_primary_domain_index(void)
 		distance_ref_points_depth = MAX_DISTANCE_REF_POINTS;
 	}
 
-	of_node_put(root);
-	return index;
-
 err:
 	of_node_put(root);
-	return -1;
+	return index;
 }
 
 static void __init get_n_mem_cells(int *n_addr_cells, int *n_size_cells)
-- 
2.43.7