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-rw-r--r--include/linux/efi.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 7f5a58225385..23cd3ced8c1a 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -946,7 +946,7 @@ extern int efi_memattr_apply_permissions(struct mm_struct *mm,
/* Iterate through an efi_memory_map */
#define for_each_efi_memory_desc_in_map(m, md) \
for ((md) = (m)->map; \
- ((void *)(md) + (m)->desc_size) <= (m)->map_end; \
+ (md) && ((void *)(md) + (m)->desc_size) <= (m)->map_end; \
(md) = (void *)(md) + (m)->desc_size)
/**