From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 629C7C433EF for ; Mon, 11 Jul 2022 09:09:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230041AbiGKJJY (ORCPT ); Mon, 11 Jul 2022 05:09:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230103AbiGKJIx (ORCPT ); Mon, 11 Jul 2022 05:08:53 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB31C237D7; Mon, 11 Jul 2022 02:07:56 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 701CCB80E7A; Mon, 11 Jul 2022 09:07:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 93A17C341C0; Mon, 11 Jul 2022 09:07:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1657530474; bh=eAlf2ThEJ0oh3s9MfqamQLqIhi0NIAtmAN9WqohRE7s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LitSIO2iQuiK8VsBtaD2VuAEkrxruJng/Op+1h9tOlEZ7zJel2LNKeOKwavPXJMOF IM7XD3u+mtzsjM8dMgDeZpE+hxg+DL+LEWFWwdl8AdiV6KPRKEFCACQO4wv236jT0q 7HEhh6QJ0R5TJ5Cy+0+hiatIZysYlm7JrDG6TNvs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaoqian Lin , Peter Ujfalusi , Vinod Koul Subject: [PATCH 4.14 17/17] dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate Date: Mon, 11 Jul 2022 11:06:42 +0200 Message-Id: <20220711090536.776114629@linuxfoundation.org> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220711090536.245939953@linuxfoundation.org> References: <20220711090536.245939953@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Miaoqian Lin commit 615a4bfc426e11dba05c2cf343f9ac752fb381d2 upstream. of_find_device_by_node() takes reference, we should use put_device() to release it when not need anymore. Fixes: a074ae38f859 ("dmaengine: Add driver for TI DMA crossbar on DRA7x") Signed-off-by: Miaoqian Lin Acked-by: Peter Ujfalusi Link: https://lore.kernel.org/r/20220605042723.17668-1-linmq006@gmail.com Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman --- drivers/dma/ti-dma-crossbar.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/dma/ti-dma-crossbar.c +++ b/drivers/dma/ti-dma-crossbar.c @@ -251,6 +251,7 @@ static void *ti_dra7_xbar_route_allocate if (dma_spec->args[0] >= xbar->xbar_requests) { dev_err(&pdev->dev, "Invalid XBAR request number: %d\n", dma_spec->args[0]); + put_device(&pdev->dev); return ERR_PTR(-EINVAL); } @@ -258,12 +259,14 @@ static void *ti_dra7_xbar_route_allocate dma_spec->np = of_parse_phandle(ofdma->of_node, "dma-masters", 0); if (!dma_spec->np) { dev_err(&pdev->dev, "Can't get DMA master\n"); + put_device(&pdev->dev); return ERR_PTR(-EINVAL); } map = kzalloc(sizeof(*map), GFP_KERNEL); if (!map) { of_node_put(dma_spec->np); + put_device(&pdev->dev); return ERR_PTR(-ENOMEM); } @@ -275,6 +278,7 @@ static void *ti_dra7_xbar_route_allocate dev_err(&pdev->dev, "Run out of free DMA requests\n"); kfree(map); of_node_put(dma_spec->np); + put_device(&pdev->dev); return ERR_PTR(-ENOMEM); } set_bit(map->xbar_out, xbar->dma_inuse);