Merge tag 'efi-urgent' into x86/urgent

 * Avoid WARN_ON() when mapping BGRT on Baytrail (EFI 32-bit).

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/flex_array.c b/lib/flex_array.c
index 6948a6692fc4..2eed22fa507c 100644
--- a/lib/flex_array.c
+++ b/lib/flex_array.c
@@ -90,8 +90,8 @@ struct flex_array *flex_array_alloc(int element_size, unsigned int total,
 {
         struct flex_array *ret;
         int elems_per_part = 0;
-        int reciprocal_elems = 0;
         int max_size = 0;
+        struct reciprocal_value reciprocal_elems = { 0 };
 
         if (element_size) {
                 elems_per_part = FLEX_ARRAY_ELEMENTS_PER_PART(element_size);
@@ -119,6 +119,11 @@ EXPORT_SYMBOL(flex_array_alloc);
 static int fa_element_to_part_nr(struct flex_array *fa,
                                         unsigned int element_nr)
 {
+        /*
+         * if element_size == 0 we don't get here, so we never touch
+         * the zeroed fa->reciprocal_elems, which would yield invalid
+         * results
+         */
         return reciprocal_divide(element_nr, fa->reciprocal_elems);
 }