block: remove unneeded return value of bio_check_ro()

bio_check_ro() always return false now. Remove this unneeded return value
and cleanup the sole caller. No functional change intended.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Link: https://lore.kernel.org/r/20220905102754.1942-1-linmiaohe@huawei.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-core.c

@@ -487,18 +487,15 @@ static int __init fail_make_request_debugfs(void)
 late_initcall(fail_make_request_debugfs);
 #endif /* CONFIG_FAIL_MAKE_REQUEST */
 
-static inline bool bio_check_ro(struct bio *bio)
+static inline void bio_check_ro(struct bio *bio)
 {
 	if (op_is_write(bio_op(bio)) && bdev_read_only(bio->bi_bdev)) {
 		if (op_is_flush(bio->bi_opf) && !bio_sectors(bio))
-			return false;
+			return;
 		pr_warn("Trying to write to read-only block-device %pg\n",
 			bio->bi_bdev);
 		/* Older lvm-tools actually trigger this */
-		return false;
 	}
-
-	return false;
 }
 
 static noinline int should_fail_bio(struct bio *bio)
@@ -722,8 +719,7 @@ void submit_bio_noacct(struct bio *bio)
 
 	if (should_fail_bio(bio))
 		goto end_io;
-	if (unlikely(bio_check_ro(bio)))
-		goto end_io;
+	bio_check_ro(bio);
 	if (!bio_flagged(bio, BIO_REMAPPED)) {
 		if (unlikely(bio_check_eod(bio)))
 			goto end_io;