[PATCH 08/11] imx-bbu-nand-fcb: When writing firmware return new bad blocks

[Sascha Hauer]

Positive return values of imx_bbu_write_firmware() so far indicate
the last block that has been written to. This value is unused, so
return values > 0 to indicate if there are new bad blocks. This
information can be used in the next step to know if the DBBT has
to be rewritten.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 common/imx-bbu-nand-fcb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/common/imx-bbu-nand-fcb.c b/common/imx-bbu-nand-fcb.c
index 0c7f75c..3e1f35f 100644
--- a/common/imx-bbu-nand-fcb.c
+++ b/common/imx-bbu-nand-fcb.c
@@ -400,7 +400,7 @@ static int imx_bbu_firmware_start_block(struct mtd_info *mtd, int num)
 static int imx_bbu_write_firmware(struct mtd_info *mtd, unsigned num, void *buf,
 				  size_t len)
 {
-	int ret, i;
+	int ret, i, newbadblock = 0;
 	int num_blocks = imx_bbu_firmware_max_blocks(mtd);
 	int block = imx_bbu_firmware_start_block(mtd, num);
 
@@ -437,6 +437,7 @@ static int imx_bbu_write_firmware(struct mtd_info *mtd, unsigned num, void *buf,
 		if (ret == -EIO) {
 			block++;
 			num_blocks--;
+			newbadblock = 1;
 			continue;
 		}
 
@@ -449,7 +450,7 @@ static int imx_bbu_write_firmware(struct mtd_info *mtd, unsigned num, void *buf,
 		num_blocks--;
 	}
 
-	return block;
+	return newbadblock;
 }
 
 static void *dbbt_data_create(struct mtd_info *mtd)
-- 
2.7.0