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Date: Fri, 22 Mar 2019 12:14:24 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>, "Darrick J. Wong" <darrick.wong@...cle.com>, Hugh Dickins <hughd@...gle.com>, Matej Kupljen <matej.kupljen@...il.com>, Al Viro <viro@...iv.linux.org.uk>, Andrew Morton <akpm@...ux-foundation.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 4.19 111/280] tmpfs: fix uninitialized return value in shmem_link 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@...cle.com> Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com> Signed-off-by: Hugh Dickins <hughd@...gle.com> Cc: Matej Kupljen <matej.kupljen@...il.com> Cc: Al Viro <viro@...iv.linux.org.uk> Cc: Andrew Morton <akpm@...ux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- 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
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