efidisk: Write to NULL pointer ldp
Function grub_efi_find_last_device_path() may return constant NULL when called from find_parent_device(). Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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@ -129,6 +129,9 @@ find_parent_device (struct grub_efidisk_data *devices,
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return 0;
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ldp = grub_efi_find_last_device_path (dp);
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if (! ldp)
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return 0;
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ldp->type = GRUB_EFI_END_DEVICE_PATH_TYPE;
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ldp->subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE;
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ldp->length = sizeof (*ldp);
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