clk: core: Copy connection id

Some drivers use sprintf to build clk connection id names but the clk
core will save those strings and occasionally print them back. Duplicate
the con_id strings instead of fixing all the users.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 0fb39fe217d1..67201f67a14a 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2502,7 +2502,7 @@ struct clk *__clk_create_clk(struct clk_hw *hw, const char *dev_id,
 
         clk->core = hw->core;
         clk->dev_id = dev_id;
-        clk->con_id = con_id;
+        clk->con_id = kstrdup_const(con_id, GFP_KERNEL);
         clk->max_rate = ULONG_MAX;
 
         clk_prepare_lock();
@@ -2518,6 +2518,7 @@ void __clk_free_clk(struct clk *clk)
         hlist_del(&clk->clks_node);
         clk_prepare_unlock();
 
+        kfree_const(clk->con_id);
         kfree(clk);
 }