From 0f404510f81a8361d16cedb55e3756213397e4bf Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Fri, 22 Feb 2019 22:35:32 -0800 Subject: [PATCH] tmpfs: fix uninitialized return value in shmem_link commit 29b00e609960ae0fcff382f4c7079dd0874a5311 upstream. 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 Signed-off-by: Darrick J. Wong Signed-off-by: Hugh Dickins Cc: Matej Kupljen Cc: Al Viro Cc: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/shmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/shmem.c b/mm/shmem.c index b40b13c94e03b..92b79c608ecfb 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2280,7 +2280,7 @@ 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 = old_dentry->d_inode; - int ret; + int ret = 0; /* * No ordinary (disk based) filesystem counts links as inodes; -- 2.47.2