UBI: introduce new constants

This patch is a clean-up and a preparation for the following
patches. It introduece constants for the return values of the
'ubi_eba_copy_leb()' function.

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

1 files changed, 6 insertions, 7 deletions

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 891534f8210d..ec915c02301c 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -756,15 +756,14 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
 
         err = ubi_eba_copy_leb(ubi, e1->pnum, e2->pnum, vid_hdr);
         if (err) {
-                if (err == -EAGAIN)
-                        goto out_not_moved;
-                if (err < 0)
-                        goto out_error;
-                if (err == 2) {
-                        /* Target PEB write error, torture it */
+                if (err == MOVE_CANCEL_BITFLIPS ||
+                    err == MOVE_TARGET_WR_ERR) {
+                        /* Target PEB bit-flips or write error, torture it */
                         torture = 1;
                         goto out_not_moved;
                 }
+                if (err < 0)
+                        goto out_error;
 
                 /*
                  * The LEB has not been moved because the volume is being
@@ -774,7 +773,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
                  */
 
                 dbg_wl("canceled moving PEB %d", e1->pnum);
-                ubi_assert(err == 1);
+                ubi_assert(err == MOVE_CANCEL_RACE);
 
                 ubi_free_vid_hdr(ubi, vid_hdr);
                 vid_hdr = NULL;