[MTD] [NAND] fix broken debug messages

Fix incorrect debug messages (*write* not read); someone committed some
cut'n'paste bugs.   There might be more, I only noticed these since I was
looking for nand_read usage and landed in some very wrong functions.

IMO all MTD debugging message framework is goofed, anyway.  It uses
"DEBUG" in a way that's incompatible with usage most everywhere else in
the kernel, and which prevents normal pr_dbg() and dev_dbg() calls from
working right.

[True. It predates those by a long way, and should probably be updated 
to use them. dwmw2]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/nand/nand_base.c

@@ -1946,7 +1946,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 	}
 
 	if (unlikely(ops->ooboffs >= len)) {
-		DEBUG(MTD_DEBUG_LEVEL0, "nand_read_oob: "
+		DEBUG(MTD_DEBUG_LEVEL0, "nand_do_write_oob: "
 			"Attempt to start write outside oob\n");
 		return -EINVAL;
 	}
@@ -1956,7 +1956,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 		     ops->ooboffs + ops->ooblen >
 			((mtd->size >> chip->page_shift) -
 			 (to >> chip->page_shift)) * len)) {
-		DEBUG(MTD_DEBUG_LEVEL0, "nand_read_oob: "
+		DEBUG(MTD_DEBUG_LEVEL0, "nand_do_write_oob: "
 			"Attempt write beyond end of device\n");
 		return -EINVAL;
 	}
@@ -2012,8 +2012,8 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
 
 	/* Do not allow writes past end of device */
 	if (ops->datbuf && (to + ops->len) > mtd->size) {
-		DEBUG(MTD_DEBUG_LEVEL0, "nand_read_oob: "
-		      "Attempt read beyond end of device\n");
+		DEBUG(MTD_DEBUG_LEVEL0, "nand_write_oob: "
+		      "Attempt write beyond end of device\n");
 		return -EINVAL;
 	}