linux-kernel - [PATCH review for 4.4 29/47] ASoC: dapm: fix some pointer error handling

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Date:   Wed, 20 Sep 2017 04:45:06 +0000
From:   "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com>
Subject: [PATCH review for 4.4 29/47] ASoC: dapm: fix some pointer error
 handling

From: Linus Walleij <linus.walleij@...aro.org>

[ Upstream commit 639467c8f26d834c934215e8b59129ce442475fe ]

commit 66feeec9322132689d42723df2537d60f96f8e44
"RFC: ASoC: dapm: handle probe deferrals"
forgot a to update some two sites where the call
was used. The static codechecks quickly found them.

Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
Fixes: 66feeec93221 ("RFC: ASoC: dapm: handle probe deferrals")
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 sound/soc/soc-dapm.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index df036afb2197..6a438a361592 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3794,6 +3794,16 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
 			template.name);
 
 		w = snd_soc_dapm_new_control_unlocked(dapm, &template);
+		if (IS_ERR(w)) {
+			int ret = PTR_ERR(w);
+
+			/* Do not nag about probe deferrals */
+			if (ret != -EPROBE_DEFER)
+				dev_err(dapm->dev,
+				"ASoC: Failed to create %s widget (%d)\n",
+				dai->driver->playback.stream_name, ret);
+			return ret;
+		}
 		if (!w) {
 			dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
 				dai->driver->playback.stream_name);
@@ -3813,6 +3823,16 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
 			template.name);
 
 		w = snd_soc_dapm_new_control_unlocked(dapm, &template);
+		if (IS_ERR(w)) {
+			int ret = PTR_ERR(w);
+
+			/* Do not nag about probe deferrals */
+			if (ret != -EPROBE_DEFER)
+				dev_err(dapm->dev,
+				"ASoC: Failed to create %s widget (%d)\n",
+				dai->driver->playback.stream_name, ret);
+			return ret;
+		}
 		if (!w) {
 			dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
 				dai->driver->capture.stream_name);
-- 
2.11.0