diff options
Diffstat (limited to 'scripts/dtc/libfdt/fdt.c')
| -rw-r--r-- | scripts/dtc/libfdt/fdt.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/scripts/dtc/libfdt/fdt.c b/scripts/dtc/libfdt/fdt.c index 179168ec63e9..d6ce7c052dc8 100644 --- a/scripts/dtc/libfdt/fdt.c +++ b/scripts/dtc/libfdt/fdt.c @@ -15,8 +15,10 @@ * that the given buffer contains what appears to be a flattened * device tree with sane information in its header. */ -int fdt_ro_probe_(const void *fdt) +int32_t fdt_ro_probe_(const void *fdt) { + uint32_t totalsize = fdt_totalsize(fdt); + if (fdt_magic(fdt) == FDT_MAGIC) { /* Complete tree */ if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION) @@ -31,7 +33,10 @@ int fdt_ro_probe_(const void *fdt) return -FDT_ERR_BADMAGIC; } - return 0; + if (totalsize < INT32_MAX) + return totalsize; + else + return -FDT_ERR_TRUNCATED; } static int check_off_(uint32_t hdrsize, uint32_t totalsize, uint32_t off) |