clk: imx27: add missing of_node_put

for_each_compatible_node performs an of_node_get on each iteration, so a
break out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e;
@@

 for_each_compatible_node(n,...) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/clk/imx/clk-imx27.c b/drivers/clk/imx/clk-imx27.c
index 0d7b8df04dfa..cf5cf75a4848 100644
--- a/drivers/clk/imx/clk-imx27.c
+++ b/drivers/clk/imx/clk-imx27.c
@@ -261,8 +261,10 @@ static void __init mx27_clocks_init_dt(struct device_node *np)
                 if (!of_device_is_compatible(refnp, "fsl,imx-osc26m"))
                         continue;
 
-                if (!of_property_read_u32(refnp, "clock-frequency", &fref))
+                if (!of_property_read_u32(refnp, "clock-frequency", &fref)) {
+                        of_node_put(refnp);
                         break;
+                }
         }
 
         ccm = of_iomap(np, 0);