efi_loader: fix bug in efi_get_memory_map
When booting shim -> fallback -> shim -> grub -> linux the memory map is a bit larger than the size linux passes in on the first call. But in the EFI_BUFFER_TOO_SMALL case we were not passing back the updated size to linux so it would loop forever. Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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@ -407,11 +407,11 @@ efi_status_t efi_get_memory_map(unsigned long *memory_map_size,
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map_size = map_entries * sizeof(struct efi_mem_desc);
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*memory_map_size = map_size;
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if (provided_map_size < map_size)
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return EFI_BUFFER_TOO_SMALL;
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*memory_map_size = map_size;
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if (descriptor_size)
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*descriptor_size = sizeof(struct efi_mem_desc);
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