exfat: move setting VOL_DIRTY over exfat_remove_entries()

Move setting VOL_DIRTY over exfat_remove_entries() to avoid unneeded
leaving VOL_DIRTY on -ENOTEMPTY.

Fixes: 5f2aa07 ("exfat: add inode operations")
Cc: stable@vger.kernel.org # v5.7
Reported-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>

fs/exfat/namei.c

@@ -975,7 +975,6 @@ static int exfat_rmdir(struct inode *dir, struct dentry *dentry)
 		goto unlock;
 	}
 
-	exfat_set_vol_flags(sb, VOL_DIRTY);
 	exfat_chain_set(&clu_to_free, ei->start_clu,
 		EXFAT_B_TO_CLU_ROUND_UP(i_size_read(inode), sbi), ei->flags);
 
@@ -1002,6 +1001,7 @@ static int exfat_rmdir(struct inode *dir, struct dentry *dentry)
 	num_entries++;
 	brelse(bh);
 
+	exfat_set_vol_flags(sb, VOL_DIRTY);
 	err = exfat_remove_entries(dir, &cdir, entry, 0, num_entries);
 	if (err) {
 		exfat_err(sb, "failed to exfat_remove_entries : err(%d)", err);