Messages in this thread | | | From | Kuninori Morimoto <> | Subject | Re: [PATCH] ASoC: rsnd: fix a possible NULL dereference | Date | Wed, 25 Nov 2015 23:46:45 +0000 |
| |
Hi LABBE
Thank you for your patch
> of_match_device could return NULL, and so cause a NULL pointer > dereference later. > Even if the probability of this case is very low, fixing it made > static analyzers happy. > Solving this with of_device_get_match_data made also code simplier. > > Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> > --- > sound/soc/sh/rcar/core.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c > index deed48e..54cc44c 100644 > --- a/sound/soc/sh/rcar/core.c > +++ b/sound/soc/sh/rcar/core.c > @@ -1204,7 +1204,6 @@ static int rsnd_probe(struct platform_device *pdev) > struct rsnd_priv *priv; > struct device *dev = &pdev->dev; > struct rsnd_dai *rdai; > - const struct of_device_id *of_id = of_match_device(rsnd_of_match, dev); > const struct rsnd_of_data *of_data; > int (*probe_func[])(struct platform_device *pdev, > const struct rsnd_of_data *of_data, > @@ -1221,11 +1220,13 @@ static int rsnd_probe(struct platform_device *pdev) > }; > int ret, i; > > + of_data = of_device_get_match_data(dev); > + if (!of_data) > + return 1;
return 1 ? You want to use -EINVAL ?
| |