From e5f0d490fb718254a884453e47fcd48493cd67ea Mon Sep 17 00:00:00 2001
From: Chuhong Yuan <hslester96@gmail.com>
Date: Thu, 17 Oct 2019 10:50:44 +0800
Subject: [PATCH] ASoC: Intel: sof-rt5682: add a check for devm_clk_get
Git-commit: e5f0d490fb718254a884453e47fcd48493cd67ea
Patch-mainline: v5.4-rc5
References: git-fixes bnc#1151927 5.3.10

sof_audio_probe misses a check for devm_clk_get and may cause problems.
Add a check for it to fix the bug.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191017025044.31474-1-hslester96@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/intel/boards/sof_rt5682.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/soc/intel/boards/sof_rt5682.c b/sound/soc/intel/boards/sof_rt5682.c
index 5ce643d62faf..4f6e58c3954a 100644
--- a/sound/soc/intel/boards/sof_rt5682.c
+++ b/sound/soc/intel/boards/sof_rt5682.c
@@ -603,6 +603,15 @@ static int sof_audio_probe(struct platform_device *pdev)
 	/* need to get main clock from pmc */
 	if (sof_rt5682_quirk & SOF_RT5682_MCLK_BYTCHT_EN) {
 		ctx->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
+		if (IS_ERR(ctx->mclk)) {
+			ret = PTR_ERR(ctx->mclk);
+
+			dev_err(&pdev->dev,
+				"Failed to get MCLK from pmc_plt_clk_3: %d\n",
+				ret);
+			return ret;
+		}
+
 		ret = clk_prepare_enable(ctx->mclk);
 		if (ret < 0) {
 			dev_err(&pdev->dev,
-- 
2.16.4