4.9-stable review patch. If anyone has any objections, please let me know.
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[ 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@oracle.com Signed-off-by: Darrick J. Wong darrick.wong@oracle.com Signed-off-by: Hugh Dickins hughd@google.com Cc: Matej Kupljen matej.kupljen@gmail.com Cc: Al Viro viro@zeniv.linux.org.uk Cc: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- mm/shmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/shmem.c b/mm/shmem.c index 214773472530..944242491059 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2896,7 +2896,7 @@ 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;