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minghsiu.tsai@mediatek.com, houlong.wei@mediatek.com, andrew-ct.chen@mediatek.com, mchehab@kernel.org, djkurtz@chromium.org, Hans Verkuil , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20190621113250.4946-1-matthias.bgg@gmail.com> From: Matthias Brugger Openpgp: preference=signencrypt Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa OhLZuSKB1F5JcvLbETRjNzNU7B3TdS2+zkgQQdEyt7Ij2HXGLJ2w+yG2GuR9/iyCJRf10Okq gTh//XESJZ8S6KlOWbLXRE+yfkKDXQx2Jr1XuVvM3zPqH5FMg8reRVFsQ+vI0b+OlyekT/Xe 0Hwvqkev95GG6x7yseJwI+2ydDH6M5O7fPKFW5mzAdDE2g/K9B4e2tYK6/rA7Fq4cqiAw1+u EgO44+eFgv082xtBez5WNkGn18vtw0LW3ESmKh19u6kEGoi0WZwslCNaGFrS4M7OH+aOJeqK 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lc8SuADCmMD+kBOVWktZyzkBkDfBXlTWl46T/8291lEspDWe5YW1ZAH/HdCR1rQNZWjNCpB2 Cic58CYMD1rSonCnbfUeyZYNNhNHZosl4dl7f+am87Q2x3pK0DLSoJRxWb7vZB0uo9CzCSm3 I++aYozF25xQoT+7zCx2cQi33jwvnJAK1o4VlNx36RfrxzBqc1uZGzJBCQu48UjmUSsTwWC3 HpE/D9sM+xACs803lFUIZC5H62G059cCPAXKgsFpNMKmBAWweBkVJAisoQeX50OP+/11ArV0 cv+fOTfJj0/KwFXJaaYh3LUQNILLBNxkSrhCLl8dUg53IbHx4NfIAgqxLWGfXM8DY1aFdU79 pac005PuhxCWkKTJz3gCmznnoat4GCnL5gy/m0Qk45l4PFqwWXVLo9AQg2Kp3mlIFZ6fsEKI AN5hxlbNvNb9V2Zo5bFZjPWPFTxOteM0omUAS+QopwU0yPLLGJVf2iCmItHcUXI+r2JwH1CJ jrHWeQEI2ucSKsNa8FllDmG/fQ== Message-ID: Date: Mon, 8 Jul 2019 11:06:43 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20190621113250.4946-1-matthias.bgg@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 21/06/2019 13:32, Matthias Brugger wrote: > of_get_next_child() increments the reference count of the returning > device_node. Decrement it in the check if we are using the old or the > new DTB. > > Fixes: ba1f1f70c2c0 ("[media] media: mtk-mdp: Fix mdp device tree") > Signed-off-by: Matthias Brugger Any comments on that? > --- > drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c > index bbb24fb95b95..bafe53c5d54a 100644 > --- a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c > +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c > @@ -118,7 +118,9 @@ static int mtk_mdp_probe(struct platform_device *pdev) > mutex_init(&mdp->vpulock); > > /* Old dts had the components as child nodes */ > - if (of_get_next_child(dev->of_node, NULL)) { > + parent = of_get_next_child(dev->of_node, NULL); > + if (parent) { > + of_node_put(parent); > parent = dev->of_node; > dev_warn(dev, "device tree is out of date\n"); > } else { >