mtd: mtdoops: skip reading initially bad blocks

Use block_isbad to check and skip the bad blocks reading.
This will allow to get rid of the read errors if bad blocks
are present initially.

Cc: stable@kernel.org
Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 1e2fa623670..cea9279ceab 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -253,6 +253,9 @@ static void find_next_position(struct mtdoops_context *cxt)
         size_t retlen;
 
         for (page = 0; page < cxt->oops_pages; page++) {
+                if (mtd->block_isbad &&
+                    mtd->block_isbad(mtd, page * record_size))
+                        continue;
                 /* Assume the page is used */
                 mark_page_used(cxt, page);
                 ret = mtd->read(mtd, page * record_size, MTDOOPS_HEADER_SIZE,