linux-kernel - [PATCH] notifier-error-inject: use DEFINE_DEBUGFS

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Message-ID: <1572525728-23957-1-git-send-email-zhongjiang@huawei.com>
Date:   Thu, 31 Oct 2019 20:42:08 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <gregkh@...uxfoundation.org>, <akinobu.mita@...il.com>
CC:     <tglx@...utronix.de>, <zhongjiang@...wei.com>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] notifier-error-inject: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops

It is more clearly to use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs file
operation rather than DEFINE_SIMPLE_ATTRIBUTE.

Meanwhile, debugfs_create_file() in debugfs_create_errno() can be replaced
by debugfs_create_file_unsafe().

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 lib/notifier-error-inject.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/notifier-error-inject.c b/lib/notifier-error-inject.c
index 21016b3..e5302f7 100644
--- a/lib/notifier-error-inject.c
+++ b/lib/notifier-error-inject.c
@@ -15,13 +15,13 @@ static int debugfs_errno_get(void *data, u64 *val)
 	return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(fops_errno, debugfs_errno_get, debugfs_errno_set,
+DEFINE_DEBUGFS_ATTRIBUTE(fops_errno, debugfs_errno_get, debugfs_errno_set,
 			"%lld\n");
 
 static struct dentry *debugfs_create_errno(const char *name, umode_t mode,
 				struct dentry *parent, int *value)
 {
-	return debugfs_create_file(name, mode, parent, value, &fops_errno);
+	return debugfs_create_file_unsafe(name, mode, parent, value, &fops_errno);
 }
 
 static int notifier_err_inject_callback(struct notifier_block *nb,
-- 
1.7.12.4