linux-kernel - [PATCH] staging: greybus: audio: Add missing unlock in gbaudio_dapm_free

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Date:   Fri, 4 Dec 2020 10:13:50 +0800
From:   Wang Hai <wanghai38@...wei.com>
To:     <johan@...nel.org>, <elder@...nel.org>,
        <gregkh@...uxfoundation.org>, <dan.carpenter@...cle.com>,
        <aibhav.sr@...il.com>
CC:     <greybus-dev@...ts.linaro.org>, <devel@...verdev.osuosl.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] staging: greybus: audio: Add missing unlock in gbaudio_dapm_free_controls()

Add the missing unlock before return from function
gbaudio_dapm_free_controls() in the error handling case.

Fixes: 510e340efe0c ("staging: greybus: audio: Add helper APIs for dynamic audio module")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wang Hai <wanghai38@...wei.com>
---
 drivers/staging/greybus/audio_helper.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/greybus/audio_helper.c b/drivers/staging/greybus/audio_helper.c
index 237531ba60f3..293675dbea10 100644
--- a/drivers/staging/greybus/audio_helper.c
+++ b/drivers/staging/greybus/audio_helper.c
@@ -135,6 +135,7 @@ int gbaudio_dapm_free_controls(struct snd_soc_dapm_context *dapm,
 		if (!w) {
 			dev_err(dapm->dev, "%s: widget not found\n",
 				widget->name);
+			mutex_unlock(&dapm->card->dapm_mutex);
 			return -EINVAL;
 		}
 		widget++;
-- 
2.17.1