UBI: add more prints

I hit those situations and found out lack of print messages. Add more prints
when erase problems occur.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

2 files changed, 5 insertions, 1 deletions

diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index b0d8f4cede97..d42ec687b014 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -430,13 +430,16 @@ static int torture_peb(const struct ubi_device *ubi, int pnum)
         err = patt_count;
 
 out:
-        if (err == UBI_IO_BITFLIPS || err == -EBADMSG)
+        if (err == UBI_IO_BITFLIPS || err == -EBADMSG) {
                 /*
                  * If a bit-flip or data integrity error was detected, the test
                  * has not passed because it happened on a freshly erased
                  * physical eraseblock which means something is wrong with it.
                  */
+                ubi_err("read problems on freshly erased PEB %d, must be bad",
+                        pnum);
                 err = -EIO;
+        }
         vfree(buf);
         return err;
 }
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index a5a9b8d87302..12b25e5b7b81 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1093,6 +1093,7 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
                 return err;
         }
 
+        ubi_err("failed to erase PEB %d, error %d", pnum, err);
         kfree(wl_wrk);
         kmem_cache_free(wl_entries_slab, e);