[PATCH] thunderbolt: unlock on error path in tb_domain_add()

[Mika Westerberg]

On Tue, Mar 23, 2021 at 04:19:06PM +0300, Dan Carpenter wrote:
> We accidentally deleted this unlock on the error path.  Undelete it.
> 
> Fixes: 7f0a34d7900b ("thunderbolt: Decrease control channel timeout for software connection manager")
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

Julia also reported this yesterday and I was just about to send a patch
that fixes it too :) Applied this one now, thanks!

> ---
>  drivers/thunderbolt/domain.c | 1 +
>  1 files changed, 1 insertions(+), 0 deletion(-)
> 
> diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c
> index a7d83eec3d15..98f4056f89ff 100644
> --- a/drivers/thunderbolt/domain.c
> +++ b/drivers/thunderbolt/domain.c
> @@ -493,6 +493,7 @@ int tb_domain_add(struct tb *tb)
>  	device_del(&tb->dev);
>  err_ctl_stop:
>  	tb_ctl_stop(tb->ctl);
> +	mutex_unlock(&tb->lock);
>  
>  	return ret;
>  }