UBI: fix multiple spelling typos

Some of the typos were indicated by Adrian Hunter,
some by 'aspell'.
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>

drivers/mtd/ubi/eba.c

@@ -951,7 +951,7 @@ int ubi_eba_atomic_leb_change(struct ubi_device *ubi, struct ubi_volume *vol,
  * physical eraseblock @to. The @vid_hdr buffer may be changed by this
  * function. Returns:
  *   o %0 in case of success;
- *   o %MOVE_CANCEL_RACE, %MOVE_TARGET_WR_ERR, or %MOVE_CANCEL_BITFLIPS;
+ *   o %MOVE_CANCEL_RACE, %MOVE_TARGET_WR_ERR, %MOVE_CANCEL_BITFLIPS, etc;
  *   o a negative error code in case of failure.
  */
 int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,

drivers/mtd/ubi/io.c

@@ -899,7 +899,7 @@ static int validate_vid_hdr(const struct ubi_device *ubi,
  * o %UBI_IO_BITFLIPS if the CRC is correct, but bit-flips were detected
  *   and corrected by the flash driver; this is harmless but may indicate that
  *   this eraseblock may become bad soon;
- * o %UBI_IO_BAD_VID_HRD if the volume identifier header is corrupted (a CRC
+ * o %UBI_IO_BAD_VID_HDR if the volume identifier header is corrupted (a CRC
  *   error detected);
  * o %UBI_IO_PEB_FREE if the physical eraseblock is free (i.e., there is no VID
  *   header there);

drivers/mtd/ubi/ubi.h

@@ -333,8 +333,8 @@ struct ubi_wl_entry;
  *      protected from the wear-leveling worker)
  * @pq_head: protection queue head
  * @wl_lock: protects the @used, @free, @pq, @pq_head, @lookuptbl, @move_from,
- * 	     @move_to, @move_to_put @erase_pending, @wl_scheduled, @works and
- * 	     @erroneous_peb_count fields
+ * 	     @move_to, @move_to_put @erase_pending, @wl_scheduled, @works,
+ * 	     @erroneous, and @erroneous_peb_count fields
  * @move_mutex: serializes eraseblock moves
  * @work_sem: synchronizes the WL worker with use tasks
  * @wl_scheduled: non-zero if the wear-leveling was scheduled

drivers/mtd/ubi/wl.c

@@ -83,7 +83,7 @@
  * used. The former state corresponds to the @wl->free tree. The latter state
  * is split up on several sub-states:
  * o the WL movement is allowed (@wl->used tree);
- * o the WL movement is disallowed (@wl->erroneous) becouse the PEB is
+ * o the WL movement is disallowed (@wl->erroneous) because the PEB is
  *   erroneous - e.g., there was a read error;
  * o the WL movement is temporarily prohibited (@wl->pq queue);
  * o scrubbing is needed (@wl->scrub tree).
@@ -744,8 +744,8 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
 			 * given, so we have a situation when it has not yet
 			 * had a chance to write it, because it was preempted.
 			 * So add this PEB to the protection queue so far,
-			 * because presubably more data will be written there
-			 * (including the missin VID header), and then we'll
+			 * because presumably more data will be written there
+			 * (including the missing VID header), and then we'll
 			 * move it.
 			 */
 			dbg_wl("PEB %d has no VID header", e1->pnum);
@@ -790,8 +790,8 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
 			 * not switch to R/O mode in this case, and give the
 			 * upper layers a possibility to recover from this,
 			 * e.g. by unmapping corresponding LEB. Instead, just
-			 * put thie PEB to the @ubi->erroneus list to prevent
-			 * UBI from trying to move the over and over again.
+			 * put this PEB to the @ubi->erroneous list to prevent
+			 * UBI from trying to move it over and over again.
 			 */
 			if (ubi->erroneous_peb_count > ubi->max_erroneous) {
 				ubi_err("too many erroneous eraseblocks (%d)",
@@ -1045,7 +1045,7 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 		/*
 		 * If this is not %-EIO, we have no idea what to do. Scheduling
 		 * this physical eraseblock for erasure again would cause
-		 * errors again and again. Well, lets switch to RO mode.
+		 * errors again and again. Well, lets switch to R/O mode.
 		 */
 		goto out_ro;
 	}
@@ -1161,7 +1161,7 @@ int ubi_wl_put_peb(struct ubi_device *ubi, int pnum, int torture)
 			rb_erase(&e->u.rb, &ubi->erroneous);
 			ubi->erroneous_peb_count -= 1;
 			ubi_assert(ubi->erroneous_peb_count >= 0);
-			/* Erronious PEBs should be tortured */
+			/* Erroneous PEBs should be tortured */
 			torture = 1;
 		} else {
 			err = prot_queue_del(ubi, e->pnum);