Messages in this thread Patch in this message | | | From | Anshuman Khandual <> | Subject | [PATCH] efi: Return EFI_RESERVED_TYPE in efi_mem_type() for absent addresses | Date | Tue, 5 Nov 2019 10:53:49 +0530 |
| |
The function efi_mem_type() is expected (per documentation above) to return EFI_RESERVED_TYPE when a given physical address is not present in the EFI memory map. Even though EFI_RESERVED_TYPE is not getting checked explicitly anywhere in the callers, it is always better to return expected values.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: linux-efi@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> --- drivers/firmware/efi/efi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index 69f00f7453a3..bdda90a4601e 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -914,7 +914,7 @@ int efi_mem_type(unsigned long phys_addr) (md->num_pages << EFI_PAGE_SHIFT)))) return md->type; } - return -EINVAL; + return EFI_RESERVED_TYPE; } #endif -- 2.20.1
| |