[PATCH 3.16 058/305] ext4: initialize retries variable in ext4_da_write_inline_data_begin()

From: Ben Hutchings
Date: Sun Feb 03 2019 - 09:29:02 EST

3.16.63-rc1 review patch. If anyone has any objections, please let me know.


From: Lukas Czerner <lczerner@xxxxxxxxxx>

commit 625ef8a3acd111d5f496d190baf99d1a815bd03e upstream.

Variable retries is not initialized in ext4_da_write_inline_data_begin()
which can lead to nondeterministic number of retries in case we hit
ENOSPC. Initialize retries to zero as we do everywhere else.

Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Fixes: bc0ca9df3b2a ("ext4: retry allocation when inline->extent conversion failed")
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
fs/ext4/inline.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -859,7 +859,7 @@ int ext4_da_write_inline_data_begin(stru
handle_t *handle;
struct page *page;
struct ext4_iloc iloc;
- int retries;
+ int retries = 0;

ret = ext4_get_inode_loc(inode, &iloc);
if (ret)