Re: [PATCH v2] i915: correctly handling failed allocation

From	Jani Nikula <jani.nikula@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2] i915: correctly handling failed allocation
Date	2016-01-04 15:10 +0100
Message-ID	<qNdZE-4ui-21@gated-at.bofh.it> (permalink)
References	<qLrkm-61-11@gated-at.bofh.it>
Organization	Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo

Show all headers | View raw

On Wed, 30 Dec 2015, Insu Yun <wuninsu@gmail.com> wrote:
> Since devm_kzalloc can be failed, it needs to be checked
> if not, NULL dereference could be happened.
>
> Signed-off-by: Insu Yun <wuninsu@gmail.com>

Pushed to drm-intel-next-queued, thanks for the patch.

BR,
Jani.

> ---
>  drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
> index a5e99ac..aa1f7bc 100644
> --- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
> +++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
> @@ -666,6 +666,8 @@ struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id)
>  
>  	/* This is cheating a bit with the cleanup. */
>  	vbt_panel = devm_kzalloc(dev->dev, sizeof(*vbt_panel), GFP_KERNEL);
> +	if (!vbt_panel)
> +		return NULL;
>  
>  	vbt_panel->intel_dsi = intel_dsi;
>  	drm_panel_init(&vbt_panel->panel);

-- 
Jani Nikula, Intel Open Source Technology Center
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

Re: [PATCH v2] i915: correctly handling failed allocation Jani Nikula <jani.nikula@linux.intel.com> - 2016-01-04 15:10 +0100

csiph-web