[PATCH 5.7 029/179] exfat: fix wrong size update of stream entry by typo

From: Greg Kroah-Hartman
Date: Mon Jul 27 2020 - 10:19:54 EST


From: Hyeongseok Kim <hyeongseok@xxxxxxxxx>

commit 41e3928f8c58184fcf0bb22e822af39a436370c7 upstream.

The stream.size field is updated to the value of create timestamp
of the file entry. Fix this to use correct stream entry pointer.

Fixes: 29bbb14bfc80 ("exfat: fix incorrect update of stream entry in __exfat_truncate()")
Signed-off-by: Hyeongseok Kim <hyeongseok@xxxxxxxxx>
Signed-off-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
fs/exfat/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -175,7 +175,7 @@ int __exfat_truncate(struct inode *inode
ep2->dentry.stream.size = 0;
} else {
ep2->dentry.stream.valid_size = cpu_to_le64(new_size);
- ep2->dentry.stream.size = ep->dentry.stream.valid_size;
+ ep2->dentry.stream.size = ep2->dentry.stream.valid_size;
}

if (new_size == 0) {