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 22FB622D7A6; Mon, 10 Mar 2025 17:49:16 +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=1741628957; cv=none; b=cd+JkoTKdyiYwUnhh/IArjmjxmXgAg+tC9Xz0GZtt/8MKgQ45x8M/zHA0Tf58ClOCYDa96yymMmvouR5+8+ztigUeSBX0w9IHT1oA5meHmo/odSXYC+CYUDDFpDvZ0UiAQPFXCH387011n4ym7LHxseUUrneuMwwYHnTUpL+zH4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741628957; c=relaxed/simple; bh=p9z4anMFck1oJvW3ThRbxaDchu2J+7xD+V3ckKa2S/I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RlCUoa28wXn4av9j36s31Mgz7hwQ/WVKSOktyGqs24kRyOr6NyFYcYc9pnhzgVI8snOiLp8r0rFvT3ypovzRFz+hRSy+rn6rw6eataVJ5gEKh9bvI//AzfAsqejV2W/qhiNh8UpWoiORDPt4KvlaPL9rp2Tf5/2kZ/1URZEnBmI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=oxhDa0K9; 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="oxhDa0K9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 362C4C4CEE5; Mon, 10 Mar 2025 17:49:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741628956; bh=p9z4anMFck1oJvW3ThRbxaDchu2J+7xD+V3ckKa2S/I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oxhDa0K9CH8GxVw1ro+dScA4NRLiJo8gSXwFjnSYu6E/oU9thFFwoTVvDrT8sK6bX iU9YSrtgj8xNRhlTPJiBnTbyWFnvgbuU+DAVJ9+phkRd+3VKPd0HzaMX4Va1BiIQGn iwyhVEBWic9XtTTyuk1pgZoEv/n8GrJb/sy1qzNM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Joe Hattori , Laurent Pinchart , Helge Deller , Sasha Levin Subject: [PATCH 5.15 128/620] fbdev: omapfb: Fix an OF node leak in dss_of_port_get_parent_device() Date: Mon, 10 Mar 2025 17:59:34 +0100 Message-ID: <20250310170550.651885746@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250310170545.553361750@linuxfoundation.org> References: <20250310170545.553361750@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Joe Hattori [ Upstream commit de124b61e179e690277116e6be512e4f422b5dd8 ] dss_of_port_get_parent_device() leaks an OF node reference when i >= 2 and struct device_node *np is present. Since of_get_next_parent() obtains a reference of the returned OF node, call of_node_put() before returning NULL. This was found by an experimental verifier that I am developing, and no runtime test was able to be performed due to that lack of actual devices. Fixes: f76ee892a99e ("omapfb: copy omapdss & displays for omapfb") Signed-off-by: Joe Hattori Reviewed-by: Laurent Pinchart Signed-off-by: Helge Deller Signed-off-by: Sasha Levin --- drivers/video/fbdev/omap2/omapfb/dss/dss-of.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c index 0282d4eef139d..3b16c3342cb77 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c @@ -102,6 +102,7 @@ struct device_node *dss_of_port_get_parent_device(struct device_node *port) np = of_get_next_parent(np); } + of_node_put(np); return NULL; } -- 2.39.5