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[2/6] ubifs: Fix data node size for truncating uncompressed nodes

Message ID 20170517083649.25135-2-richard@nod.at
State Accepted
Delegated to: Richard Weinberger
Headers show

Commit Message

Richard Weinberger May 17, 2017, 8:36 a.m. UTC 
From: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

Currently, the function truncate_data_node only updates the
destination data node size if compression is used. For
uncompressed nodes, the old length is incorrectly retained.

This patch makes sure that the length is correctly set when
compression is disabled.

Fixes: 7799953b34d1 ("ubifs: Implement encrypt/decrypt for all IO")
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 fs/ubifs/journal.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 294519b98874..f3b620cbdda4 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -1298,7 +1298,9 @@  static int truncate_data_node(const struct ubifs_info *c, const struct inode *in
 			goto out;
 	}
 
-	if (compr_type != UBIFS_COMPR_NONE) {
+	if (compr_type == UBIFS_COMPR_NONE) {
+		out_len = *new_len;
+	} else {
 		err = ubifs_decompress(c, &dn->data, dlen, buf, &out_len, compr_type);
 		if (err)
 			goto out;