linux-kernel - [PATCH -next 3/3] fail_function: fix wrong use of fei_attr

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Date:   Fri, 26 Aug 2022 15:33:37 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <mhiramat@...nel.org>, <ast@...nel.org>, <jbacik@...com>,
        <akpm@...ux-foundation.org>
Subject: [PATCH -next 3/3] fail_function: fix wrong use of fei_attr_remove()

If register_kprobe() fails, the new attr is not added to the list yet,
so it should call fei_attr_free() intstead.

Fixes: 4b1a29a7f542 ("error-injection: Support fault injection framework")
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 kernel/fail_function.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/fail_function.c b/kernel/fail_function.c
index 893e8f9a9118..a7ccd2930c5f 100644
--- a/kernel/fail_function.c
+++ b/kernel/fail_function.c
@@ -295,7 +295,7 @@ static ssize_t fei_write(struct file *file, const char __user *buffer,
 
 	ret = register_kprobe(&attr->kp);
 	if (ret) {
-		fei_attr_remove(attr);
+		fei_attr_free(attr);
 		goto out;
 	}
 	fei_debugfs_add_attr(attr);
-- 
2.25.1