diff options
| author | xypron.glpk@gmx.de | 2017-07-21 19:04:33 +0200 |
|---|---|---|
| committer | Alexander Graf | 2017-07-24 14:46:01 +0200 |
| commit | 0ecba5db85fb566bcbb3ba96fda85f26f78be22d (patch) | |
| tree | 6918a5d1fc64ea26811702c940989aa63fb14360 /lib/efi_loader | |
| parent | ca9193d2b163cd274144edddd29be20cdb5f99a3 (diff) | |
efi_memory: do parameter checks first
The parameter checks should be done first.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'lib/efi_loader')
| -rw-r--r-- | lib/efi_loader/efi_memory.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 5c53aaafdb1..c56653f4978 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -407,6 +407,9 @@ efi_status_t efi_get_memory_map(unsigned long *memory_map_size, map_size = map_entries * sizeof(struct efi_mem_desc); + if (provided_map_size < map_size) + return EFI_BUFFER_TOO_SMALL; + *memory_map_size = map_size; if (descriptor_size) @@ -415,9 +418,6 @@ efi_status_t efi_get_memory_map(unsigned long *memory_map_size, if (descriptor_version) *descriptor_version = EFI_MEMORY_DESCRIPTOR_VERSION; - if (provided_map_size < map_size) - return EFI_BUFFER_TOO_SMALL; - /* Copy list into array */ if (memory_map) { /* Return the list in ascending order */ |