From: Yang Yingliang <yangyingliang@xxxxxxxxxx> [ Upstream commit f8b139e2f24112f4e21f1eb02c7fc7600fea4b8d ] IS_ERR() and PTR_ERR() use wrong pointer, it should be writeback_fid, fix it. Link: http://lkml.kernel.org/r/20210330130632.1054357-1-yangyingliang@xxxxxxxxxx Fixes: 5bfe97d7382b ("9p: Fix writeback fid incorrectly being attached to dentry") Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx> [Dominique: adjusted commit summary] Signed-off-by: Dominique Martinet <asmadeus@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- fs/9p/vfs_file.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 649f04f112dc..59c32c9b799f 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -86,8 +86,8 @@ int v9fs_file_open(struct inode *inode, struct file *file) * to work. */ writeback_fid = v9fs_writeback_fid(file_dentry(file)); - if (IS_ERR(fid)) { - err = PTR_ERR(fid); + if (IS_ERR(writeback_fid)) { + err = PTR_ERR(writeback_fid); mutex_unlock(&v9inode->v_mutex); goto out_error; } -- 2.30.2