dm: avoid useless 'else' after 'break' or return'

Signed-off-by: Heinz Mauelshagen <[e-mail]>
Signed-off-by: Mike Snitzer <[e-mail]>

drivers/md/dm-stripe.c

···
 			sc->stripe[target_stripe].physical_start;
 		bio->bi_iter.bi_size = to_bytes(end - begin);
 		return DM_MAPIO_REMAPPED;
-	} else {
-		/* The range doesn't map to the target stripe */
-		bio_endio(bio);
-		return DM_MAPIO_SUBMITTED;
 	}
+
+	/* The range doesn't map to the target stripe */
+	bio_endio(bio);
+	return DM_MAPIO_SUBMITTED;
 }
 
 static int stripe_map(struct dm_target *ti, struct bio *bio)

drivers/md/dm-thin-metadata.c

···
 		if (r) {
 			if (r == -ENODATA)
 				break;
-			else
-				return r;
+
+			return r;
 		}
 
 		if ((lookup.block != pool_end) ||

drivers/md/dm-verity-target.c

···
 		sg_init_one(&sg, data, len);
 		ahash_request_set_crypt(req, &sg, NULL, len);
 		return crypto_wait_req(crypto_ahash_update(req), wait);
-	} else {
-		do {
-			int r;
-			size_t this_step = min_t(size_t, len, PAGE_SIZE - offset_in_page(data));
-
-			flush_kernel_vmap_range((void *)data, this_step);
-			sg_init_table(&sg, 1);
-			sg_set_page(&sg, vmalloc_to_page(data), this_step, offset_in_page(data));
-			ahash_request_set_crypt(req, &sg, NULL, this_step);
-			r = crypto_wait_req(crypto_ahash_update(req), wait);
-			if (unlikely(r))
-				return r;
-			data += this_step;
-			len -= this_step;
-		} while (len);
-		return 0;
 	}
+
+	do {
+		int r;
+		size_t this_step = min_t(size_t, len, PAGE_SIZE - offset_in_page(data));
+
+		flush_kernel_vmap_range((void *)data, this_step);
+		sg_init_table(&sg, 1);
+		sg_set_page(&sg, vmalloc_to_page(data), this_step, offset_in_page(data));
+		ahash_request_set_crypt(req, &sg, NULL, this_step);
+		r = crypto_wait_req(crypto_ahash_update(req), wait);
+		if (unlikely(r))
+			return r;
+		data += this_step;
+		len -= this_step;
+	} while (len);
+
+	return 0;
 }
 
 /*

drivers/md/dm-writecache.c

···
 		if (unlikely(!node)) {
 			if (!(flags & WFE_RETURN_FOLLOWING))
 				return NULL;
-			if (read_original_sector(wc, e) >= block) {
+			if (read_original_sector(wc, e) >= block)
 				return e;
-			} else {
-				node = rb_next(&e->rb_node);
-				if (unlikely(!node))
-					return NULL;
-				e = container_of(node, struct wc_entry, rb_node);
-				return e;
-			}
+
+			node = rb_next(&e->rb_node);
+			if (unlikely(!node))
+				return NULL;
+
+			e = container_of(node, struct wc_entry, rb_node);
+			return e;
 		}
 	}
 

drivers/md/persistent-data/dm-btree.c

···
 		i = le32_to_cpu(ro_node(s)->header.nr_entries);
 		if (!i)
 			return -ENODATA;
-		else
-			i--;
+
+		i--;
 
 		if (find_highest)
 			*result_key = le64_to_cpu(ro_node(s)->keys[i]);

drivers/md/persistent-data/dm-space-map-common.c

···
 	rc = le32_to_cpu(*v_ptr);
 	*old_rc = rc;
 
-	if (rc == 3) {
+	if (rc == 3)
 		return __sm_ll_del_overflow(ll, b, ic);
-	} else {
-		rc--;
-		*v_ptr = cpu_to_le32(rc);
-		return 0;
-	}
+
+	rc--;
+	*v_ptr = cpu_to_le32(rc);
+	return 0;
 }
 
 static int sm_ll_dec_overflow(struct ll_disk *ll, dm_block_t b,