[PATCH 5.17 0886/1126] f2fs: compress: fix to print raw data size in error path of lz4 decompression

Greg Kroah-Hartman
2022-04-05T09:08:28Z

From: Chao Yu <chao@kernel.org>

[ Upstream commit d284af43f703760e261b1601378a0c13a19d5f1f ]

In lz4_decompress_pages(), if size of decompressed data is not equal to
expected one, we should print the size rather than size of target buffer
for decompressed data, fix it.

Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/f2fs/compress.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index d0c3aeba5945..3b162506b269 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -314,10 +314,9 @@ static int lz4_decompress_pages(struct decompress_io_ctx *dic)
}

if (ret != PAGE_SIZE << dic->log_cluster_size) {
- printk_ratelimited("%sF2FS-fs (%s): lz4 invalid rlen:%zu, "
+ printk_ratelimited("%sF2FS-fs (%s): lz4 invalid ret:%d, "
"expected:%lu\n", KERN_ERR,
- F2FS_I_SB(dic->inode)->sb->s_id,
- dic->rlen,
+ F2FS_I_SB(dic->inode)->sb->s_id, ret,
PAGE_SIZE << dic->log_cluster_size);
return -EIO;
}
--
2.34.1