Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ee411430 authored by Borislav Petkov's avatar Borislav Petkov Committed by Matt Fleming
Browse files

x86/efi: Check krealloc return value 



Check it just in case. We might just as well panic there because runtime
won't be functioning anyway.

Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Signed-off-by: default avatarMatt Fleming <matt.fleming@intel.com>
parent d2f7cbe7

arch/x86/platform/efi/efi.c

+8 −0
Original line number Diff line number Diff line
@@ -860,6 +860,9 @@ void __init efi_enter_virtual_mode(void) 
		new_memmap = krealloc(new_memmap,

				      (count + 1) * memmap.desc_size,

				      GFP_KERNEL);

		if (!new_memmap)

			goto err_out;



		memcpy(new_memmap + (count * memmap.desc_size), md,

		       memmap.desc_size);

		count++;
@@ -914,6 +917,11 @@ void __init efi_enter_virtual_mode(void) 
			 EFI_VARIABLE_BOOTSERVICE_ACCESS |

			 EFI_VARIABLE_RUNTIME_ACCESS,

			 0, NULL);



	return;



 err_out:

	pr_err("Error reallocating memory, EFI runtime non-functional!\n");

}



/*