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Date: Thu, 21 Sep 2017 14:22:11 +0300
From: Ville Syrjälä <ville.syrjala@...ux.intel.com>
To: Arvind Yadav <arvind.yadav.cs@...il.com>
Cc: thierry.reding@...il.com, airlied@...ux.ie, jonathanh@...dia.com,
daniel.vetter@...el.com, jani.nikula@...ux.intel.com,
seanpaul@...omium.org, linux-kernel@...r.kernel.org,
dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 1/2] drm: tegra: dc: Handle return value of kasprintf
On Wed, Sep 20, 2017 at 12:55:07PM +0530, Arvind Yadav wrote:
> kasprintf() can fail here and we must check its return value.
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
> ---
> drivers/gpu/drm/tegra/dc.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
> index 4df3911..f3214a1 100644
> --- a/drivers/gpu/drm/tegra/dc.c
> +++ b/drivers/gpu/drm/tegra/dc.c
> @@ -1695,6 +1695,8 @@ static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor)
> int err;
>
> name = kasprintf(GFP_KERNEL, "dc.%d", dc->pipe);
> + if (!name)
> + return -ENOMEM;
> dc->debugfs = debugfs_create_dir(name, minor->debugfs_root);
Indeed, doesn't look like debugfs_create_dir() can be safely called w/
name==NULL.
Reviewed-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> kfree(name);
>
> --
> 1.9.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Ville Syrjälä
Intel OTC
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