X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fmtd%2Fonenand%2Fonenand_base.c;h=56a8b2005bdace6eb51fe500a040dc13f38c24b8;hb=b3dcfd35244e1cb8dc8dfa5c05013b133dbb437a;hp=bac41caa8df72d8967caf93fd4f2fc96309f07c7;hpb=a1d3f5b70d13b7035f925de1f2ba0003a04b9ac5;p=~andy%2Flinux

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index bac41caa8df..56a8b2005bd 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1132,6 +1132,8 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
 			onenand_update_bufferram(mtd, from, !ret);
 			if (ret == -EBADMSG)
 				ret = 0;
+			if (ret)
+				break;
 		}
 
 		this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen);
@@ -1646,11 +1648,10 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
 	int ret = 0;
 	int thislen, column;
 
+	column = addr & (this->writesize - 1);
+
 	while (len != 0) {
-		thislen = min_t(int, this->writesize, len);
-		column = addr & (this->writesize - 1);
-		if (column + thislen > this->writesize)
-			thislen = this->writesize - column;
+		thislen = min_t(int, this->writesize - column, len);
 
 		this->command(mtd, ONENAND_CMD_READ, addr, this->writesize);
 
@@ -1664,12 +1665,13 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
 
 		this->read_bufferram(mtd, ONENAND_DATARAM, this->verify_buf, 0, mtd->writesize);
 
-		if (memcmp(buf, this->verify_buf, thislen))
+		if (memcmp(buf, this->verify_buf + column, thislen))
 			return -EBADMSG;
 
 		len -= thislen;
 		buf += thislen;
 		addr += thislen;
+		column = 0;
 	}
 
 	return 0;
@@ -4083,7 +4085,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
 	mtd->writebufsize = mtd->writesize;
 
 	/* Unlock whole block */
-	this->unlock_all(mtd);
+	if (!(this->options & ONENAND_SKIP_INITIAL_UNLOCKING))
+		this->unlock_all(mtd);
 
 	ret = this->scan_bbt(mtd);
 	if ((!FLEXONENAND(this)) || ret)