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Diffstat (limited to 'libfdt/fdt_ro.c')
-rw-r--r--libfdt/fdt_ro.c33
1 files changed, 9 insertions, 24 deletions
diff --git a/libfdt/fdt_ro.c b/libfdt/fdt_ro.c
index d682a40c1..1e1e32209 100644
--- a/libfdt/fdt_ro.c
+++ b/libfdt/fdt_ro.c
@@ -205,7 +205,6 @@ const struct fdt_property *fdt_get_property_namelen(const void *fdt,
{
uint32_t tag;
const struct fdt_property *prop;
- int namestroff;
int offset, nextoffset;
int err;
@@ -220,38 +219,24 @@ const struct fdt_property *fdt_get_property_namelen(const void *fdt,
tag = fdt_next_tag(fdt, offset, &nextoffset);
switch (tag) {
case FDT_END:
- err = -FDT_ERR_TRUNCATED;
+ if (nextoffset < 0)
+ err = nextoffset;
+ else
+ /* FDT_END tag with unclosed nodes */
+ err = -FDT_ERR_BADSTRUCTURE;
goto fail;
- case FDT_BEGIN_NODE:
- case FDT_END_NODE:
- case FDT_NOP:
- break;
-
case FDT_PROP:
- err = -FDT_ERR_BADSTRUCTURE;
- prop = fdt_offset_ptr(fdt, offset, sizeof(*prop));
- if (! prop)
- goto fail;
- namestroff = fdt32_to_cpu(prop->nameoff);
- if (_fdt_string_eq(fdt, namestroff, name, namelen)) {
+ prop = _fdt_offset_ptr(fdt, offset);
+ if (_fdt_string_eq(fdt, fdt32_to_cpu(prop->nameoff),
+ name, namelen)) {
/* Found it! */
- int len = fdt32_to_cpu(prop->len);
- prop = fdt_offset_ptr(fdt, offset,
- sizeof(*prop)+len);
- if (! prop)
- goto fail;
-
if (lenp)
- *lenp = len;
+ *lenp = fdt32_to_cpu(prop->len);
return prop;
}
break;
-
- default:
- err = -FDT_ERR_BADSTRUCTURE;
- goto fail;
}
} while ((tag != FDT_BEGIN_NODE) && (tag != FDT_END_NODE));