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Diffstat (limited to 'libfdt/fdt_sw.c')
-rw-r--r--libfdt/fdt_sw.c31
1 files changed, 15 insertions, 16 deletions
diff --git a/libfdt/fdt_sw.c b/libfdt/fdt_sw.c
index dda2de3..df09876 100644
--- a/libfdt/fdt_sw.c
+++ b/libfdt/fdt_sw.c
@@ -55,13 +55,21 @@
#include "libfdt_internal.h"
-static int check_header_sw(void *fdt)
+static int sw_check_header(void *fdt)
{
if (fdt_magic(fdt) != SW_MAGIC)
return -FDT_ERR_BADMAGIC;
+ /* FIXME: should check more details about the header state */
return 0;
}
+#define SW_CHECK_HEADER(fdt) \
+ { \
+ int err; \
+ if ((err = sw_check_header(fdt)) != 0) \
+ return err; \
+ }
+
static void *grab_space(void *fdt, int len)
{
int offset = fdt_size_dt_struct(fdt);
@@ -102,11 +110,10 @@ int fdt_create(void *buf, int bufsize)
int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)
{
struct fdt_reserve_entry *re;
- int err = check_header_sw(fdt);
int offset;
- if (err)
- return err;
+ SW_CHECK_HEADER(fdt);
+
if (fdt_size_dt_struct(fdt))
return -FDT_ERR_BADSTATE;
@@ -131,11 +138,9 @@ int fdt_finish_reservemap(void *fdt)
int fdt_begin_node(void *fdt, const char *name)
{
struct fdt_node_header *nh;
- int err = check_header_sw(fdt);
int namelen = strlen(name) + 1;
- if (err)
- return err;
+ SW_CHECK_HEADER(fdt);
nh = grab_space(fdt, sizeof(*nh) + ALIGN(namelen, FDT_TAGSIZE));
if (! nh)
@@ -149,10 +154,8 @@ int fdt_begin_node(void *fdt, const char *name)
int fdt_end_node(void *fdt)
{
uint32_t *en;
- int err = check_header_sw(fdt);
- if (err)
- return err;
+ SW_CHECK_HEADER(fdt);
en = grab_space(fdt, FDT_TAGSIZE);
if (! en)
@@ -188,11 +191,9 @@ static int find_add_string(void *fdt, const char *s)
int fdt_property(void *fdt, const char *name, const void *val, int len)
{
struct fdt_property *prop;
- int err = check_header_sw(fdt);
int nameoff;
- if (err)
- return err;
+ SW_CHECK_HEADER(fdt);
nameoff = find_add_string(fdt, name);
if (nameoff == 0)
@@ -211,15 +212,13 @@ int fdt_property(void *fdt, const char *name, const void *val, int len)
int fdt_finish(void *fdt)
{
- int err = check_header_sw(fdt);
char *p = (char *)fdt;
uint32_t *end;
int oldstroffset, newstroffset;
uint32_t tag;
int offset, nextoffset;
- if (err)
- return err;
+ SW_CHECK_HEADER(fdt);
/* Add terminator */
end = grab_space(fdt, sizeof(*end));