f2fs: compress: fix to free compress page correctly

In error path of f2fs_write_compressed_pages(), it needs to call
f2fs_compress_free_page() to release temporary page.

Fixes: 5e6bbde ("f2fs: introduce mempool for {,de}compress intermediate page allocation")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/compress.c

@@ -1372,7 +1372,8 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
 	for (i = 0; i < cc->nr_cpages; i++) {
 		if (!cc->cpages[i])
 			continue;
-		f2fs_put_page(cc->cpages[i], 1);
+		f2fs_compress_free_page(cc->cpages[i]);
+		cc->cpages[i] = NULL;
 	}
 out_put_cic:
 	kmem_cache_free(cic_entry_slab, cic);