dtc: Add many const qualifications

This adds 'const' qualifiers to many variables and functions.  In
particular it's now used for passing names to the tree accesor
functions.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 2 insertions, 2 deletions

diff --git a/fstree.c b/fstree.c
index 28fd94c..2a160a4 100644
--- a/fstree.c
+++ b/fstree.c
@@ -23,7 +23,7 @@
 #include <dirent.h>
 #include <sys/stat.h>
 
-static struct node *read_fstree(char *dirname)
+static struct node *read_fstree(const char *dirname)
 {
 	DIR *d;
 	struct dirent *de;
@@ -80,7 +80,7 @@ static struct node *read_fstree(char *dirname)
 	return tree;
 }
 
-struct boot_info *dt_from_fs(char *dirname)
+struct boot_info *dt_from_fs(const char *dirname)
 {
 	struct node *tree;