From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arvind Yadav Subject: [PATCH 08/11] ASoC: sun4i-spdif: Handle return value of clk_prepare_enable. Date: Tue, 25 Jul 2017 15:45:18 +0530 Message-ID: <1500977718-28010-1-git-send-email-arvind.yadav.cs@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: perex@perex.cz, tiwai@suse.com, broonie@kernel.org, krzk@kernel.org, sbkim73@samsung.com, maxime.ripard@free-electrons.com, wens@csie.org, lgirdwood@gmail.com Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: alsa-devel@alsa-project.org clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav --- sound/soc/sunxi/sun4i-spdif.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/sound/soc/sunxi/sun4i-spdif.c b/sound/soc/sunxi/sun4i-spdif.c index eaefd07..4a316c0 100644 --- a/sound/soc/sunxi/sun4i-spdif.c +++ b/sound/soc/sunxi/sun4i-spdif.c @@ -458,11 +458,16 @@ static int sun4i_spdif_runtime_suspend(struct device *dev) static int sun4i_spdif_runtime_resume(struct device *dev) { struct sun4i_spdif_dev *host = dev_get_drvdata(dev); + int ret; - clk_prepare_enable(host->spdif_clk); - clk_prepare_enable(host->apb_clk); + ret = clk_prepare_enable(host->spdif_clk); + if (ret) + return ret; + ret = clk_prepare_enable(host->apb_clk); + if (ret) + clk_disable_unprepare(host->spdif_clk); - return 0; + return ret; } static int sun4i_spdif_probe(struct platform_device *pdev) -- 1.9.1