diff options
| -rw-r--r-- | payloads/libpayload/libcbfs/ram_media.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/payloads/libpayload/libcbfs/ram_media.c b/payloads/libpayload/libcbfs/ram_media.c index 3d9abf0fbe..d5469f6890 100644 --- a/payloads/libpayload/libcbfs/ram_media.c +++ b/payloads/libpayload/libcbfs/ram_media.c @@ -51,7 +51,7 @@ static void *ram_map(struct cbfs_media *media, size_t offset, size_t count) { if (offset + count > m->size) { printf("ERROR: ram_map: request out of range (0x%zx+0x%zx)\n", offset, count); - return NULL; + return CBFS_MEDIA_INVALID_MAP_ADDRESS; } return (void*)(m->start + offset); } @@ -63,6 +63,8 @@ static void *ram_unmap(struct cbfs_media *media, const void *address) { static size_t ram_read(struct cbfs_media *media, void *dest, size_t offset, size_t count) { void *ptr = ram_map(media, offset, count); + if (ptr == CBFS_MEDIA_INVALID_MAP_ADDRESS) + return 0; memcpy(dest, ptr, count); ram_unmap(media, ptr); return count; |