From: wens@csie.org (Chen-Yu Tsai)
To: linux-arm-kernel@lists.infradead.org
Subject: [patch] bus: sunxi-rsb: unlock on error in sunxi_rsb_read()
Date: Wed, 4 Nov 2015 23:28:27 +0800 [thread overview]
Message-ID: <CAGb2v65nxJfszKUyOMb7sjLTtvvBTGy=FLwysLt5t_9xa1BcfQ@mail.gmail.com> (raw)
In-Reply-To: <20151103220244.GA19280@mwanda>
On Wed, Nov 4, 2015 at 6:02 AM, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> Don't forget to unlock before returning an error code.
>
> Fixes: d787dcdb9c8f ('bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus')
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
>
> diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c
> index 846bc29c..0cfcb39 100644
> --- a/drivers/bus/sunxi-rsb.c
> +++ b/drivers/bus/sunxi-rsb.c
> @@ -342,13 +342,13 @@ static int sunxi_rsb_read(struct sunxi_rsb *rsb, u8 rtaddr, u8 addr,
>
> ret = _sunxi_rsb_run_xfer(rsb);
> if (ret)
> - goto out;
> + goto unlock;
>
> *buf = readl(rsb->regs + RSB_DATA);
>
> +unlock:
> mutex_unlock(&rsb->lock);
>
> -out:
> return ret;
> }
>
next prev parent reply other threads:[~2015-11-04 15:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-03 22:02 [patch] bus: sunxi-rsb: unlock on error in sunxi_rsb_read() Dan Carpenter
2015-11-04 12:19 ` walter harms
2015-11-04 12:34 ` Julia Lawall
2015-11-04 12:46 ` Dan Carpenter
2015-11-04 15:28 ` Chen-Yu Tsai [this message]
2015-11-04 15:51 ` Maxime Ripard
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