[PATCH 1/1] ocfs2: fix uninitialized variable in ocfs2_test_suballoc_bit()

From: Dan Carpenter

Date: Thu Dec 18 2025 - 02:48:25 EST


The ocfs2_read_hint_group_descriptor() function sets "*released = 1;"
but nothing ever sets it to zero so it's used without being
initialized. Initialize it to zero.

Fixes: acb8a8335a64 ("ocfs2: detect released suballocator BG for fh_to_[dentry|parent]")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
These days everyone has CONFIG_INIT_STACK_ALL_ZERO enabled so we never
detect these bugs. There are a couple distros which don't, I've heard.
But in testing, I always encourage people to use
CONFIG_INIT_STACK_ALL_PATTERN=y

fs/ocfs2/suballoc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 72c7559c1a2b..79d1325b2111 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -3163,7 +3163,7 @@ static int ocfs2_test_suballoc_bit(struct ocfs2_super *osb,
struct ocfs2_group_desc *group;
struct buffer_head *group_bh = NULL;
u64 bg_blkno;
- int status, quiet = 0, released;
+ int status, quiet = 0, released = 0;

trace_ocfs2_test_suballoc_bit((unsigned long long)blkno,
(unsigned int)bit);
--
2.51.0