From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (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 88B8D37D10F for ; Tue, 14 Apr 2026 07:24:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776151496; cv=none; b=fgjlqTOvjQ035Nq/V/fwNqD2i4JH8TRl2d21lAvbXi3MjdJXi4mRn7r6FlAG/LWGMUMz9YOcg3Mm/QZLZXQu1LLLiCoQ5XeUUUdqjevTTo18NXRCJ4Amxn6ZWucLHs35WoW+Mub0PuH/CQgIhVEf0rVXOjk2OyprGWMQjbEWGvo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776151496; c=relaxed/simple; bh=ZUz/JCIgb+OnqbDm7l1yjT6xXQ++s/3RLVo2aQ+MaRY=; h=Mime-Version:Content-Type:Date:Message-Id:Subject:To:From: References:In-Reply-To; b=ewfJJ9SFFSEe23GNy6mfRrwHKZUjbh9J3aIfZnrG7OZmxynZujvfkNMJBKbHVLUkcqDrwEdR0lPmWRyNXFXFU34qnw2BiApYc+vmrUD1wCE58rQmZjxIN3+wJQjkrWjvpq2NgIcSWtFLmg+Duxhb9IeKnS34z/bao0U7DwrU0W4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=rBXNcC+Q; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="rBXNcC+Q" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id E44D4C5B1BF; Tue, 14 Apr 2026 07:25:29 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id F0D245FFBB; Tue, 14 Apr 2026 07:24:52 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 6970610450C2F; Tue, 14 Apr 2026 09:24:49 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1776151492; h=from:subject:date:message-id:to:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=hqdHhQTAs+jH/daUBn6nCHtIM4ikF68EijxW04F+ShE=; b=rBXNcC+Q1zhPC9HRpFH60KohBhrEhabVQksEfCpHB3R6ABnBj12DEjtbrM13efTH0gbF6v QL1ufdYY/+pqrM+SU+wu9nwp8kSUaosrVrpxTGp1jt8vzwEs7RCCp1X/ErdnaPffcyiZIb tkuHseeRMwK7HVDzaGJ6EtdXIxAnpJCCwAML8LNP7W1qyuSQP58AV6u/G/qct7nhWSIePm utJhJWqvCIcH2eu6OGxTW0u5COnZV70WL3EzhodrRAiHd92jDdbv8IXWlF5s0goGgXmFPu toxldaiBIMHg9TqGsQPDLweVW1URTPL6t6NdPiyI8/Pds1RmgOdQSTs67yZi3A== Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Tue, 14 Apr 2026 09:24:48 +0200 Message-Id: Subject: Re: [PATCH] drm/sti: hdmi: remove bridge when component_add fails To: "Osama Abdelkader" , "Alain Volmat" , "Raphael Gallais-Pou" , "Maarten Lankhorst" , "Maxime Ripard" , "Thomas Zimmermann" , "David Airlie" , "Simona Vetter" , , From: "Luca Ceresoli" X-Mailer: aerc 0.20.1 References: <20260410194141.275998-1-osama.abdelkader@gmail.com> In-Reply-To: <20260410194141.275998-1-osama.abdelkader@gmail.com> X-Last-TLS-Session-Version: TLSv1.3 Hello, On Fri Apr 10, 2026 at 9:41 PM CEST, Osama Abdelkader wrote: > when component_add fails in sti_hdmi_probe remove the drm bridge > and put i2c adapter before return > > Signed-off-by: Osama Abdelkader > --- > drivers/gpu/drm/sti/sti_hdmi.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdm= i.c > index f8222e60b1e0..839c80a7d954 100644 > --- a/drivers/gpu/drm/sti/sti_hdmi.c > +++ b/drivers/gpu/drm/sti/sti_hdmi.c > @@ -1460,8 +1460,13 @@ static int sti_hdmi_probe(struct platform_device *= pdev) > platform_set_drvdata(pdev, hdmi); > > drm_bridge_add(&hdmi->bridge); > - return component_add(&pdev->dev, &sti_hdmi_ops); > + ret =3D component_add(&pdev->dev, &sti_hdmi_ops); > + if (ret) > + goto remove_bridge; > + return 0; > > + remove_bridge: > + drm_bridge_remove(&hdmi->bridge); > release_adapter: > i2c_put_adapter(hdmi->ddc_adapt); This function has an insane amount of sections like: if (IS_ERR(...)) { DRM_ERROR(...); ret =3D PTR_ERR(...); goto release_adapter; } I guess all these can be dramatically simplified by using a devm action. of_get_i2c_adapter_by_node() has no devm_ version but you can add a release action using devm_add_action_or_reset(). This would allow to simplify all the error management if()s and avoid any gotos. On top of that you can just switch to devm_drm_bridge_add(). Luca -- Luca Ceresoli, Bootlin Embedded Linux and Kernel engineering https://bootlin.com