As soon as a mapping is unlinked from the list, there are no further
references to it, so it should be freed. If it not unlinked,
update the start address and length.
Signed-off-by: Stefan Brüns <stefan.bru...@rwth-aachen.de>
---
lib/efi_loader/efi_memory.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index 0fcfb7a..6d8fae4 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -103,10 +103,13 @@ static int efi_mem_carve_out(struct efi_mem_list *map,
if (map_end == carve_end) {
/* Full overlap, just remove map */
list_del(&map->link);
+ free(map);
+ } else {
+ map->desc.physical_start = carve_end;
+ map->desc.num_pages = (map_end - carve_end)
+ >> EFI_PAGE_SHIFT;
}
- map_desc->physical_start = carve_end;
- map_desc->num_pages = (map_end - carve_end) >> EFI_PAGE_SHIFT;
return (carve_end - carve_start) >> EFI_PAGE_SHIFT;
}
--
2.10.0
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