This has been forgotten in commit 
f5bbdacc419 ("[MTD] NAND Modularize
read function") and nobody compiled the driver.
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Joern Engel <joern@wh.fh-wedel.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
                        er_stat |= 1 << 1;
                kfree(buf);
        }
-
+out:
        rtn = status;
        if (er_stat == 0) {     /* if ECC is available   */
                rtn = (status & ~NAND_STATUS_FAIL);     /*   clear the error bit */