From: Sai Praneeth <[email protected]> efi_memmap_install(), unmaps the existing memory map and installs the new memory map but doesn't free the memory allocated to the existing memory map. Fortunately, the details about the existing memory map are stored in efi.memmap. Hence, use them to free the memory.
Signed-off-by: Sai Praneeth Prakhya <[email protected]> Reported-by: Ard Biesheuvel <[email protected]> Cc: Lee Chun-Yi <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Dave Young <[email protected]> Cc: Laszlo Ersek <[email protected]> Cc: Bhupesh Sharma <[email protected]> Cc: Ricardo Neri <[email protected]> Cc: Ravi Shankar <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Ard Biesheuvel <[email protected]> --- Note: Patch based on efi tree @https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git drivers/firmware/efi/memmap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/firmware/efi/memmap.c b/drivers/firmware/efi/memmap.c index 678e85704054..68b27b14fe94 100644 --- a/drivers/firmware/efi/memmap.c +++ b/drivers/firmware/efi/memmap.c @@ -229,6 +229,9 @@ int __init efi_memmap_install(phys_addr_t addr, unsigned int nr_map) efi_memmap_unmap(); + /* Free the memory allocated to the existing memory map */ + efi_memmap_free(efi.memmap.phys_map, efi.memmap.nr_map, efi.memmap.late); + data.phys_map = addr; data.size = efi.memmap.desc_size * nr_map; data.desc_version = efi.memmap.desc_version; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
