bus: vexpress-config: Add missing of_node_put

for_each_compatible_node performs an of_node_get on each iteration, so
to break out of the loop an of_node_put is required.

Found using Coccinelle. The semantic patch used for this is as follows:

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

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

Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/bus/vexpress-config.c b/drivers/bus/vexpress-config.c
index 6575c0fe6a4e..c3cb76b363c6 100644
--- a/drivers/bus/vexpress-config.c
+++ b/drivers/bus/vexpress-config.c
@@ -192,8 +192,10 @@ static int __init vexpress_config_init(void)
         /* Need the config devices early, before the "normal" devices... */
         for_each_compatible_node(node, NULL, "arm,vexpress,config-bus") {
                 err = vexpress_config_populate(node);
-                if (err)
+                if (err) {
+                        of_node_put(node);
                         break;
+                }
         }
 
         return err;