4.19-stable review patch. If anyone has any objections, please let me know.
------------------
[ Upstream commit 29b00e609960ae0fcff382f4c7079dd0874a5311 ]
When we made the shmem_reserve_inode call in shmem_link conditional, we
forgot to update the declaration for ret so that it always has a known
value. Dan Carpenter pointed out this deficiency in the original patch.
Fixes: 1062af920c07 ("tmpfs: fix link accounting when a tmpfile is linked in")
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Matej Kupljen <matej.kupljen@xxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
mm/shmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index bf13966b009c..3c8742655756 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2895,7 +2895,7 @@ static int shmem_create(struct inode *dir, struct dentry *dentry, umode_t mode,
static int shmem_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
{
struct inode *inode = d_inode(old_dentry);
- int ret;
+ int ret = 0;
/*
* No ordinary (disk based) filesystem counts links as inodes;
--
2.19.1
