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path: root/scripts/dtc/libfdt/fdt_rw.c
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Diffstat (limited to 'scripts/dtc/libfdt/fdt_rw.c')
-rw-r--r--scripts/dtc/libfdt/fdt_rw.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/scripts/dtc/libfdt/fdt_rw.c b/scripts/dtc/libfdt/fdt_rw.c
index f13458d165d4..3621d3651d3f 100644
--- a/scripts/dtc/libfdt/fdt_rw.c
+++ b/scripts/dtc/libfdt/fdt_rw.c
@@ -349,7 +349,10 @@ int fdt_add_subnode_namelen(void *fdt, int parentoffset,
return offset;
/* Try to place the new node after the parent's properties */
- fdt_next_tag(fdt, parentoffset, &nextoffset); /* skip the BEGIN_NODE */
+ tag = fdt_next_tag(fdt, parentoffset, &nextoffset);
+ /* the fdt_subnode_offset_namelen() should ensure this never hits */
+ if (!can_assume(LIBFDT_FLAWLESS) && (tag != FDT_BEGIN_NODE))
+ return -FDT_ERR_INTERNAL;
do {
offset = nextoffset;
tag = fdt_next_tag(fdt, offset, &nextoffset);
@@ -391,7 +394,9 @@ int fdt_del_node(void *fdt, int nodeoffset)
}
static void fdt_packblocks_(const char *old, char *new,
- int mem_rsv_size, int struct_size)
+ int mem_rsv_size,
+ int struct_size,
+ int strings_size)
{
int mem_rsv_off, struct_off, strings_off;
@@ -406,8 +411,7 @@ static void fdt_packblocks_(const char *old, char *new,
fdt_set_off_dt_struct(new, struct_off);
fdt_set_size_dt_struct(new, struct_size);
- memmove(new + strings_off, old + fdt_off_dt_strings(old),
- fdt_size_dt_strings(old));
+ memmove(new + strings_off, old + fdt_off_dt_strings(old), strings_size);
fdt_set_off_dt_strings(new, strings_off);
fdt_set_size_dt_strings(new, fdt_size_dt_strings(old));
}
@@ -467,7 +471,8 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize)
return -FDT_ERR_NOSPACE;
}
- fdt_packblocks_(fdt, tmp, mem_rsv_size, struct_size);
+ fdt_packblocks_(fdt, tmp, mem_rsv_size, struct_size,
+ fdt_size_dt_strings(fdt));
memmove(buf, tmp, newsize);
fdt_set_magic(buf, FDT_MAGIC);
@@ -487,7 +492,8 @@ int fdt_pack(void *fdt)
mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
* sizeof(struct fdt_reserve_entry);
- fdt_packblocks_(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt));
+ fdt_packblocks_(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt),
+ fdt_size_dt_strings(fdt));
fdt_set_totalsize(fdt, fdt_data_size_(fdt));
return 0;