Subject: [PATCH 3/5] powerpc/pseries: don't call strrchr() twice

From: Andy Shevchenko <[email-masked]>
Date: Tue, 4 Aug 2015 17:36:47 +0300

There is no need to call strrchr() second time. We already know that in that
case parent_path_len either 1 ("/foo") or bigger ("/foo/bar").

Signed-off-by: Andy Shevchenko <[email-masked]>
---
 arch/powerpc/platforms/pseries/of_helpers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/of_helpers.c b/arch/powerpc/platforms/pseries/of_helpers.c
index 2f363e3..027446a 100644
--- a/arch/powerpc/platforms/pseries/of_helpers.c
+++ b/arch/powerpc/platforms/pseries/of_helpers.c
@@ -23,7 +23,7 @@ struct device_node *pseries_of_derive_parent(const char *path)
 	if (!strcmp(path, "/"))
 		return ERR_PTR(-EINVAL);
 
-	if (strrchr(path, '/') != path) {
+	if (parent_path_len > 1) {
 		parent_path = kmalloc(parent_path_len, GFP_KERNEL);
 		if (!parent_path)
 			return ERR_PTR(-ENOMEM);
-- 
2.4.6