diff --git a/82802ab.c b/82802ab.c
index 3aa76b4b793d8d31a3aded10d8dcf3c909748a45..68054e2d1fad66f0efbe45579e7c21c914b9acf6 100644
--- a/82802ab.c
+++ b/82802ab.c
@@ -206,10 +206,10 @@ int write_82802ab(struct flashchip *flash, uint8_t *buf)
 	return 0;
 }
 
-int unlock_28f004s5(struct flashrom *flash)
+int unlock_28f004s5(struct flashchip *flash)
 {
 	chipaddr bios = flash->virtual_memory;
-	uint8_t mcfg, bcfg, need_unlock = 0, can_unlock = 0;
+	uint8_t mcfg, bcfg, need_unlock = 0, can_unlock = 0, i;
 
 	/* Clear status register */
 	chip_writeb(0x50, bios);
diff --git a/chipdrivers.h b/chipdrivers.h
index d8a5bccb18b8a9a0da401053e7236c0c328d4603..c96f44564e8727ac5982bf14d889084a6c755b94 100644
--- a/chipdrivers.h
+++ b/chipdrivers.h
@@ -62,6 +62,7 @@ int write_82802ab(struct flashchip *flash, uint8_t *buf);
 void print_status_82802ab(uint8_t status);
 void write_page_82802ab(chipaddr bios, uint8_t *src, chipaddr dst, int page_size);
 int unlock_82802ab(struct flashchip *flash);
+int unlock_28f004s5(struct flashchip *flash);
 
 /* jedec.c */
 uint8_t oddparity(uint8_t val);