diff options
Diffstat (limited to 'scripts/dtc/libfdt/fdt_rw.c')
| -rw-r--r-- | scripts/dtc/libfdt/fdt_rw.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/scripts/dtc/libfdt/fdt_rw.c b/scripts/dtc/libfdt/fdt_rw.c index 8e7ec4cb7bcd..24437dfc32b8 100644 --- a/scripts/dtc/libfdt/fdt_rw.c +++ b/scripts/dtc/libfdt/fdt_rw.c @@ -289,6 +289,33 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name, return 0; } +int fdt_appendprop(void *fdt, int nodeoffset, const char *name, + const void *val, int len) +{ + struct fdt_property *prop; + int err, oldlen, newlen; + + FDT_RW_CHECK_HEADER(fdt); + + prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen); + if (prop) { + newlen = len + oldlen; + err = _fdt_splice_struct(fdt, prop->data, + FDT_TAGALIGN(oldlen), + FDT_TAGALIGN(newlen)); + if (err) + return err; + prop->len = cpu_to_fdt32(newlen); + memcpy(prop->data + oldlen, val, len); + } else { + err = _fdt_add_property(fdt, nodeoffset, name, len, &prop); + if (err) + return err; + memcpy(prop->data, val, len); + } + return 0; +} + int fdt_delprop(void *fdt, int nodeoffset, const char *name) { struct fdt_property *prop; @@ -406,6 +433,8 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize) struct_size = 0; while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END) ; + if (struct_size < 0) + return struct_size; } if (!_fdt_blocks_misordered(fdt, mem_rsv_size, struct_size)) { |