[PATCH 08/18] CLK: Check and do not allow to register clock twice.

[Andrey Panov]

Signed-off-by: Andrey Panov <rockford at yandex.ru>
---
 drivers/clk/clk.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 584e2f3..5f78c9c 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -212,8 +212,17 @@ struct clk *clk_get_parent(struct clk *clk)
 
 int clk_register(struct clk *clk)
 {
+	struct clk *c;
+
 	clk->parents = xzalloc(sizeof(struct clk *) * clk->num_parents);
 
+	list_for_each_entry(c, &clks, list) {
+		if (!strcmp(c->name, clk->name)){
+			pr_err("%s clk %s is already registered, skipping!\n", __func__, clk->name);
+			return 0;
+		}
+	}
+
 	list_add_tail(&clk->list, &clks);
 
 	return 0;
-- 
2.1.4