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-rw-r--r--util/cbmem/cbmem.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/util/cbmem/cbmem.c b/util/cbmem/cbmem.c
index b4f41d2072..dea2c0b11e 100644
--- a/util/cbmem/cbmem.c
+++ b/util/cbmem/cbmem.c
@@ -102,7 +102,7 @@ static const void *mapping_virt(const struct mapping *mapping)
return v + mapping->offset;
}
-/* Returns 0 on success, < 0 on error. mapping is filled in. */
+/* Returns virtual address on success, NULL on error. mapping is filled in. */
static const void *map_memory(struct mapping *mapping, unsigned long long phys,
size_t sz)
{
@@ -378,14 +378,11 @@ static int parse_cbtable(u64 address, size_t table_size)
return -1;
/* look at every 16 bytes */
- for (i = 0; i < req_size; i += 16) {
+ for (i = 0; i <= req_size - sizeof(struct lb_header); i += 16) {
int ret;
const struct lb_header *lbh;
struct mapping table_mapping;
- if (req_size - i < sizeof(struct lb_header))
- return -1;
-
lbh = buf + i;
if (memcmp(lbh->signature, "LBIO", sizeof(lbh->signature)) ||
!lbh->header_bytes ||