linux-kernel - [PATCH] staging: most: sound: Fix error path of audio

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Date:   Tue, 27 Aug 2019 21:13:46 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <gregkh@...uxfoundation.org>, <christian.gromm@...rochip.com>,
        <dan.carpenter@...cle.com>, <colin.king@...onical.com>,
        <yuehaibing@...wei.com>
CC:     <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] staging: most: sound: Fix error path of audio_init

If most_register_configfs_subsys() fails, we should
call most_deregister_component() do cleanup.

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: 919c03ae11b9 ("staging: most: enable configfs support")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/staging/most/sound/sound.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/most/sound/sound.c b/drivers/staging/most/sound/sound.c
index 342f390..7981706 100644
--- a/drivers/staging/most/sound/sound.c
+++ b/drivers/staging/most/sound/sound.c
@@ -802,8 +802,11 @@ static int __init audio_init(void)
 	if (ret)
 		pr_err("Failed to register %s\n", comp.name);
 	ret = most_register_configfs_subsys(&comp);
-	if (ret)
+	if (ret) {
 		pr_err("Failed to register %s configfs subsys\n", comp.name);
+		most_deregister_component(&comp);
+	}
+
 	return ret;
 }
 
-- 
2.7.4