[PATCH] of/overlay: Remove unused variable

Commit 3e7f7626fd49a ("of/overlay: Do not generate duplicate nodes") removed
the only use of the 'grandchild' variable, which leads to the following build
warning:

drivers/of/overlay.c: In function 'of_overlay_apply_single_device_node':
drivers/of/overlay.c:89:31: warning: unused variable 'grandchild' [-Wunused-variable]
  struct device_node *tchild, *grandchild;
                               ^

Remove this unused variable.

Signed-off-by: Fabio Estevam <redacted>
---
 drivers/of/overlay.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index 4066648..dee9270 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c

@@ -86,7 +86,7 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov,
 		struct device_node *target, struct device_node *child)
 {
 	const char *cname;
-	struct device_node *tchild, *grandchild;
+	struct device_node *tchild;
 	int ret = 0;
 
 	cname = kbasename(child->full_name);

-- 
1.9.1

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