[POWERPC] Add missing of_node_put in drivers/macintosh/therm_adt746x.c

of_node_put is needed before discarding a value received from
of_find_node_by_name, eg in error handling code.

The semantic patch that makes the change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
struct device_node *n;
struct device_node *n1;
statement S;
identifier f;
expression E;
constant C;
@@

n = of_find_node_by_name(...)
...
if (!n) S
... when != of_node_put(n)
    when != n1 = f(n,...)
    when != E = n
    when any
    when strict
(
+ of_node_put(n);
  return -C;
|
  of_node_put(n);
|
  n1 = f(n,...)
|
  E = n
|
  return ...;
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 10 insertions, 3 deletions

diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 54f4942a2968..5366dc93fb38 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -562,18 +562,24 @@ thermostat_init(void)
                 therm_type = ADT7460;
         else if (of_device_is_compatible(np, "adt7467"))
                 therm_type = ADT7467;
-        else
+        else {
+                of_node_put(np);
                 return -ENODEV;
+        }
 
         prop = of_get_property(np, "hwsensor-params-version", NULL);
         printk(KERN_INFO "adt746x: version %d (%ssupported)\n", *prop,
                          (*prop == 1)?"":"un");
-        if (*prop != 1)
+        if (*prop != 1) {
+                of_node_put(np);
                 return -ENODEV;
+        }
 
         prop = of_get_property(np, "reg", NULL);
-        if (!prop)
+        if (!prop) {
+                of_node_put(np);
                 return -ENODEV;
+        }
 
         /* look for bus either by path or using "reg" */
         if (strstr(np->full_name, "/i2c-bus@") != NULL) {
@@ -610,6 +616,7 @@ thermostat_init(void)
         
         if (of_dev == NULL) {
                 printk(KERN_ERR "Can't register temperatures device !\n");
+                of_node_put(np);
                 return -ENODEV;
         }