oobavail size calculation error in nand_base.c

[Jinyoung Park]

Hello.

I found error in nand_base.c.
In nand_scan_tail() function, oobavail size calculation result is
wrong as follow circumstances.
    - Define nand_ecclayout using full oobfree array like below.
	.oobfree = { {2, 6}, {11, 2}, {16, 8}, {27, 2}, {32, 8}, {43, 2},{48,
8}, {59, 2} }
    - Using ARM EABI cross compiler when kernel compile also enable
"Use the ARM EABI to compile the kernl" feature in kernel menuconfig.
      I using ARM EABI compiler that codesourcery release arm-2008q3-51.

In this case, right oobavail size is 38 but result is too much
value(e.g. 2703572308...). It's random.
I think sometimes happen that after beyond oobfree array(oobfree[8])
is not 0 when ARM EABI compilation.
Below codes are my modified code. Please check...

Thanks.

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 3d7ed43..abb5998 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2756,9 +2756,12 @@ int nand_scan_tail(struct mtd_info *mtd)
	* the out of band area
	*/
	chip->ecc.layout->oobavail = 0;
-	for (i = 0; chip->ecc.layout->oobfree[i].length; i++)
+	for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES; i++) {
+	if (chip->ecc.layout->oobfree[i].length == 0)
+		break;
	chip->ecc.layout->oobavail +=
		chip->ecc.layout->oobfree[i].length;
+	}
	mtd->oobavail = chip->ecc.layout->oobavail;