linux-kernel - Re: [PATCH -next] drm: tegra: fix missing unlock on error

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Message-ID: <20121202211214.GA22265@avionic-0098.adnet.avionic-design.de>
Date:	Sun, 2 Dec 2012 22:12:14 +0100
From:	Thierry Reding <thierry.reding@...onic-design.de>
To:	Wei Yongjun <weiyj.lk@...il.com>
Cc:	airlied@...ux.ie, grant.likely@...retlab.ca,
	rob.herring@...xeda.com, yongjun_wei@...ndmicro.com.cn,
	dri-devel@...ts.freedesktop.org,
	devicetree-discuss@...ts.ozlabs.org, linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] drm: tegra: fix missing unlock on error

On Sun, Dec 02, 2012 at 05:25:05AM -0500, Wei Yongjun wrote:
> From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
> 
> Add the missing unlock before return from function host1x_drm_init()
> and host1x_drm_exit() in the error handling case.
> 
> Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
> ---
>  drivers/gpu/drm/tegra/host1x.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/tegra/host1x.c b/drivers/gpu/drm/tegra/host1x.c
> index bdb97a5..39629e6 100644
> --- a/drivers/gpu/drm/tegra/host1x.c
> +++ b/drivers/gpu/drm/tegra/host1x.c
> @@ -176,6 +176,7 @@ int host1x_drm_init(struct host1x *host1x, struct drm_device *drm)
>  				dev_err(host1x->dev,
>  					"DRM setup failed for %s: %d\n",
>  					dev_name(client->dev), err);
> +				mutex_unlock(&host1x->clients_lock);
>  				return err;
>  			}
>  		}
> @@ -203,6 +204,7 @@ int host1x_drm_exit(struct host1x *host1x)
>  				dev_err(host1x->dev,
>  					"DRM cleanup failed for %s: %d\n",
>  					dev_name(client->dev), err);
> +				mutex_unlock(&host1x->clients_lock);
>  				return err;
>  			}
>  		}

Acked-by: Thierry Reding <thierry.reding@...onic-design.de>

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