From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 EF25A33B6EF; Mon, 20 Apr 2026 15:54:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776700456; cv=none; b=Tzjy3xweFgbcba4bkop003CYpfJYs3w+ygEek3pwWsC7p3hhX9OREvh1uA2HhO8Wt8ivo6Nr5ZjMzDS7QGugIDp9DW3nuA7/sXvpkFl/7dn2+LbgvtBGcgUOO2g1Lk6Exp5K6oDu5Ns1dX24iz8gfIquJgK28nCwW/0iHbB8zkU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776700456; c=relaxed/simple; bh=VNNDCo3tzk0y80/jqHyagnVwMIG4kBYLjoW+nN/AZEo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=BSFNanlLC9iNQILMnPnn0Sx/hLmK5/zugVtnchZ03lxPW5VlzUpAqqioZNh3b2kvcluMWVbBCBSBCB27D8bZ++jD3v46uEODnflzuEU5PtsiDgN2dlr8GqFEksr5IQNhVaKpc1/rBzKtCd2fuAeNnG6R1C3r1XIv3Q/gvQAnzpk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=GRgXS4JG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="GRgXS4JG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 871F0C19425; Mon, 20 Apr 2026 15:54:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1776700455; bh=VNNDCo3tzk0y80/jqHyagnVwMIG4kBYLjoW+nN/AZEo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GRgXS4JGnG28259noclgDmZ9pADT6hbU50fRzqdKboJHK4qU9SnIQvMdAITwOJKFR gaDykxK2UZhlucY9qb28GAEOygAxUz7SfJJO014Bc6KOYAx6j3JfZb1Ua9009i8a3N H9NvU9QmO8J9TjF5OjIX42gV258o+LeDazqspihM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Maxime Ripard , Dave Stevenson , =?UTF-8?q?Ma=C3=ADra=20Canal?= , Raspberry Pi Kernel Maintenance , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , stable Subject: [PATCH 6.19 148/220] drm/vc4: platform_get_irq_byname() returns an int Date: Mon, 20 Apr 2026 17:41:29 +0200 Message-ID: <20260420153939.358555160@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260420153934.013228280@linuxfoundation.org> References: <20260420153934.013228280@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Greg Kroah-Hartman commit e597a809a2b97e927060ba182f58eb3e6101bc70 upstream. platform_get_irq_byname() will return a negative value if an error happens, so it should be checked and not just passed directly into devm_request_threaded_irq() hoping all will be ok. Cc: Maxime Ripard Cc: Dave Stevenson Cc: Maíra Canal Cc: Raspberry Pi Kernel Maintenance Cc: Maarten Lankhorst Cc: Thomas Zimmermann Cc: David Airlie Cc: Simona Vetter Cc: stable Assisted-by: gkh_clanker_2000 Signed-off-by: Greg Kroah-Hartman Link: https://patch.msgid.link/2026022339-cornflake-t-shirt-2471@gregkh Signed-off-by: Maíra Canal Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/vc4/vc4_hdmi.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -2349,17 +2349,23 @@ static int vc4_hdmi_hotplug_init(struct int ret; if (vc4_hdmi->variant->external_irq_controller) { - unsigned int hpd_con = platform_get_irq_byname(pdev, "hpd-connected"); - unsigned int hpd_rm = platform_get_irq_byname(pdev, "hpd-removed"); + int hpd = platform_get_irq_byname(pdev, "hpd-connected"); - ret = devm_request_threaded_irq(&pdev->dev, hpd_con, + if (hpd < 0) + return hpd; + + ret = devm_request_threaded_irq(&pdev->dev, hpd, NULL, vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT, "vc4 hdmi hpd connected", vc4_hdmi); if (ret) return ret; - ret = devm_request_threaded_irq(&pdev->dev, hpd_rm, + hpd = platform_get_irq_byname(pdev, "hpd-removed"); + if (hpd < 0) + return hpd; + + ret = devm_request_threaded_irq(&pdev->dev, hpd, NULL, vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT, "vc4 hdmi hpd disconnected", vc4_hdmi);