drivers/of: Constify device_node->name and ->path_component_name
Neither of these should ever be changed once set. Make them const and
fix up the users that try to modify it in-place. In one case
kmalloc+memcpy is replaced with kstrdup() to avoid modifying the string.
Build tested with defconfigs on ARM, PowerPC, Sparc, MIPS, x86 among
others.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Julian Calaby <julian.calaby@gmail.com>
diff --git a/include/linux/of.h b/include/linux/of.h
index b4e50d5..857dde9 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -46,7 +46,7 @@
const char *name;
const char *type;
phandle phandle;
- char *full_name;
+ const char *full_name;
struct property *properties;
struct property *deadprops; /* removed properties */
@@ -60,7 +60,7 @@
unsigned long _flags;
void *data;
#if defined(CONFIG_SPARC)
- char *path_component_name;
+ const char *path_component_name;
unsigned int unique_id;
struct of_irq_controller *irq_trans;
#endif