From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ixit.cz (ixit.cz [84.42.129.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 87EB439A06D; Mon, 14 Sep 2026 18:34:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=84.42.129.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789410902; cv=none; b=ZKYZGmWHlqy6v3uzInCj8Aq59odcSgww8o7wgLVhbRgtQtAZI0jqfBKXlVyphf4CoC18VWenH/v6mRyJnMM+hEEOgn6X9wiPSfcgohjDC5KicurxbdjuqKBfS/LnB5SBsAREKKLLfwoOAKZiHnZjhgRs4XWPV1dpyFRP2znkGvY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789410902; c=relaxed/simple; bh=B/KhOE/cPA5wuGhVuSxvGslGu9BTJq+GgxVblXAqPlo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=hf7n//lRkXh11j2x7KunQH0dGBNTUpqhmpT0T/4bPLlIub9iFNsL5pNYDA+h+3pKXyGp+wvWzQozr9+Z7ol/6J8Z1iQ8Eeh46JdkJwPlguVlcR/ZYN3cG/1uQjMXCAQrIsQEH2L2mUhuRQOYgto4BAIzyuGYkPGH/PA4eholUlU= ARC-Authentication-Results:i=1; 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t=1789410889; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=eSQ1KHTYxMqP644PbBgyA/dOPDLer74IQYxGcMnJfUA=; b=etFSTt+8ptYo4K+cR2gJYnXD8B4G3ZuMtll5cEaDNDktWBL3s5VSOPK2USP1SW3NFlkRWq SF/FUFcs4EyVMUigZfyLJ1iyNm0M85UDjLpXIruQrRTF9sWi15FhMLZI7Mqp4MpiV43bjC 1/l/pb1SDjvbRLD0KisEGP34f4Lu50M= Message-ID: <9ada2cc5-1f2e-48fa-a170-052fe33dff29@ixit.cz> Date: Mon, 14 Sep 2026 20:34:48 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/4] backlight: qcom-wled: Fix NULL pointer dereference in PM callbacks To: Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller , Kiran Gunda , Marco Mattiolo , =?UTF-8?B?QmFybmFiw6FzIEN6w6ltw6Fu?= Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, Konrad Dybcio , Joel Selvaraj , stable@vger.kernel.org References: <20260914-qcom-wled-backlight-v3-0-d69fe9843841@ixit.cz> <20260914-qcom-wled-backlight-v3-1-d69fe9843841@ixit.cz> Content-Language: en-US, cs-CZ From: David Heidelberg Autocrypt: addr=david@ixit.cz; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 14/09/2026 20:14, David Heidelberg via B4 Relay wrote: > From: David Heidelberg > > wled_probe() doesn't set the driver data for the platform device. > As a result, dev_get_drvdata() in wled_remove() will return NULL, > leading to a NULL pointer dereference afterward. > > Set the platform device driver data in wled_probe(). > > Cc: stable@vger.kernel.org > Fixes: feeab87b3072 ("backlight: qcom-wled: Add support for short circuit handling") > Signed-off-by: David Heidelberg > --- > drivers/video/backlight/qcom-wled.c | 1 + > 1 file changed, 1 insertion(+) > Please ignore this [1/4] patch, so at least the rest get fixed. In next series, I'll omit this one (I thought it's easy drop in fix for critical, but seems not). David