linux-ext4 - [PATCH] ext4: initialize retries variable in ext4_da_write_inline_data

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Date:   Mon, 13 Aug 2018 15:34:59 +0200
From:   Lukas Czerner <lczerner@...hat.com>
To:     linux-ext4@...r.kernel.org
Cc:     Lukas Czerner <lczerner@...hat.com>, stable@...nel.org
Subject: [PATCH] ext4: initialize retries variable in ext4_da_write_inline_data_begin()

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@...hat.com>
Fixes: bc0ca9df3b2a ("ext4: retry allocation when inline->extent conversion failed")
Cc: stable@...nel.org
---
 fs/ext4/inline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 3543fe80a3c4..1b13fa5c9d6e 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -863,7 +863,7 @@ int ext4_da_write_inline_data_begin(struct address_space *mapping,
 	handle_t *handle;
 	struct page *page;
 	struct ext4_iloc iloc;
-	int retries;
+	int retries = 0;
 
 	ret = ext4_get_inode_loc(inode, &iloc);
 	if (ret)
-- 
2.17.1