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tmpfs: fix uninitialized return value in shmem_link 

[ 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.

[aviraxp: Adjust context for 3.10]

Fixes: 1062af920c07 ("tmpfs: fix link accounting when a tmpfile is linked in")
Change-Id: Ib91581d0f1ffbfb1ebe2f827aa125684a844eded
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>
This commit is contained in:
Darrick J. Wong 2019-02-22 22:35:32 -08:00 committed by Francescodario Cuzzocrea
parent adcc84d7f2
commit b7697bead6
1 changed files with 1 additions and 1 deletions
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2
mm/shmem.c
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@ -1685,7 +1685,7 @@ 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;