From: Wei Yongjun Date: Thu, 29 Nov 2012 02:56:15 +0000 (-0300) Subject: [media] mt9v022: fix potential NULL pointer dereference in mt9v022_probe() X-Git-Tag: firefly_0821_release~3680^2~275^2~350 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=daf16bab1eaf5a82217697bfb91eb7d9c9745d0d;p=firefly-linux-kernel-4.4.55.git [media] mt9v022: fix potential NULL pointer dereference in mt9v022_probe() The dereference to 'icl' should be moved below the NULL test. Reported-by: Fengguang Wu Signed-off-by: Wei Yongjun Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/i2c/soc_camera/mt9v022.c b/drivers/media/i2c/soc_camera/mt9v022.c index d40a8858be01..75098024d477 100644 --- a/drivers/media/i2c/soc_camera/mt9v022.c +++ b/drivers/media/i2c/soc_camera/mt9v022.c @@ -875,7 +875,7 @@ static int mt9v022_probe(struct i2c_client *client, struct mt9v022 *mt9v022; struct soc_camera_link *icl = soc_camera_i2c_to_link(client); struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); - struct mt9v022_platform_data *pdata = icl->priv; + struct mt9v022_platform_data *pdata; int ret; if (!icl) { @@ -893,6 +893,7 @@ static int mt9v022_probe(struct i2c_client *client, if (!mt9v022) return -ENOMEM; + pdata = icl->priv; v4l2_i2c_subdev_init(&mt9v022->subdev, client, &mt9v022_subdev_ops); v4l2_ctrl_handler_init(&mt9v022->hdl, 6); v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,