From: Borislav Petkov <b...@suse.de>
Check it just in case. We might just as well panic there because runtime
won't be functioning anyway.
Signed-off-by: Borislav Petkov <b...@suse.de>
---
arch/x86/platform/efi/efi.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index b453069236fd..3fac4dee492f 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -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");
}
/*
--
1.8.4
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