linux-kernel - [PATCH] samples cn

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Date:   Fri, 26 Jun 2020 11:52:14 +0800
From:   libolingjl@....com
To:     davem@...emloft.net, gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, liboling <libolingjl@....com>
Subject: [PATCH] samples cn_test: fix cn leakage

From: liboling <libolingjl@....com>

Error return when add the second cn_test_id,
we need del the first cn_test_id.

Signed-off-by: liboling <libolingjl@....com>
---
 samples/connector/cn_test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/samples/connector/cn_test.c b/samples/connector/cn_test.c
index 0958a171d0..275e3f9082 100644
--- a/samples/connector/cn_test.c
+++ b/samples/connector/cn_test.c
@@ -151,6 +151,7 @@ static int cn_test_init(void)
 	cn_test_id.val++;
 	err = cn_add_callback(&cn_test_id, cn_test_name, cn_test_callback);
 	if (err) {
+		cn_test_id.val--;
 		cn_del_callback(&cn_test_id);
 		goto err_out;
 	}
-- 
2.17.1