[POWERPC] cell/cbe_regs.c: Add missing of_node_put

There should be an of_node_put when breaking out of a loop that iterates
using for_each_node_by_type.

This was detected and fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
identifier d;
type T;
expression e;
iterator for_each_node_by_type;
@@

T *d;
...
for_each_node_by_type(d,...)
{... when != of_node_put(d)
when != e = d
(
return d;
|
+ of_node_put(d);
? return ...;
)
...}
// </smpl>

Signed-off-by: Julia Lawall <[e-mail]>
Cc: Christian Krafft <[e-mail]>
Cc: Benjamin Herrenschmidt <[e-mail]>
Cc: David Erb <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Paul Mackerras <[e-mail]>

arch/powerpc/platforms/cell/cbe_regs.c

···
 			printk(KERN_ERR "cbe_regs: More BE chips than supported"
 			       "!\n");
 			cbe_regs_map_count--;
+			of_node_put(cpu);
 			return;
 		}
 		map->cpu_node = cpu;