mips: mti-malta: Fix refcount leak in malta-time.c

In update_gic_frequency_dt(), of_find_compatible_node() will return
a node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Signed-off-by: Liang He <[e-mail]>
Signed-off-by: Thomas Bogendoerfer <[e-mail]>

arch/mips/mti-malta/malta-time.c

···
 
 	if (of_update_property(node, &gic_frequency_prop) < 0)
 		pr_err("error updating gic frequency property\n");
+
+	of_node_put(node);
 }
 
 #endif