libfdt: Add fdt_set_name() function
This patch adds an fdt_set_name() function to libfdt, mirroring
fdt_get_name(). This is a r/w function which alters the name of a
given device tree node.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/libfdt/fdt_rw.c b/libfdt/fdt_rw.c
index 6673f8e..a1c70ff 100644
--- a/libfdt/fdt_rw.c
+++ b/libfdt/fdt_rw.c
@@ -252,6 +252,30 @@
return 0;
}
+int fdt_set_name(void *fdt, int nodeoffset, const char *name)
+{
+ char *namep;
+ int oldlen, newlen;
+ int err;
+
+ if ((err = rw_check_header(fdt)))
+ return err;
+
+ namep = (char *)fdt_get_name(fdt, nodeoffset, &oldlen);
+ if (!namep)
+ return oldlen;
+
+ newlen = strlen(name);
+
+ err = _blob_splice_struct(fdt, namep, ALIGN(oldlen+1, FDT_TAGSIZE),
+ ALIGN(newlen+1, FDT_TAGSIZE));
+ if (err)
+ return err;
+
+ memcpy(namep, name, newlen+1);
+ return 0;
+}
+
int fdt_setprop(void *fdt, int nodeoffset, const char *name,
const void *val, int len)
{