1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/platform_data/elm.h b/include/linux/platform_data/elm.h
index 11ab6aaf2431..1bd5244d1dcd 100644
--- a/include/linux/platform_data/elm.h
+++ b/include/linux/platform_data/elm.h
@@ -30,7 +30,8 @@ enum bch_ecc {
 #define BCH4_ECC_OOB_BYTES              7
 /* RBL requires 14 byte even though BCH8 uses only 13 byte */
 #define BCH8_SIZE                       (BCH8_ECC_OOB_BYTES + 1)
-#define BCH4_SIZE                       (BCH4_ECC_OOB_BYTES)
+/* Uses 1 extra byte to handle erased pages */
+#define BCH4_SIZE                       (BCH4_ECC_OOB_BYTES + 1)
 
 /**
  * struct elm_errorvec - error vector for elm