linux-kernel - [PATCH 25/44] debugfs: move to new strtobool

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Message-Id: <1305850262-9575-25-git-send-email-gregkh@suse.de>
Date:	Thu, 19 May 2011 17:10:43 -0700
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Jonathan Cameron <jic23@....ac.uk>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 25/44] debugfs: move to new strtobool

From: Jonathan Cameron <jic23@....ac.uk>

No functional changes requires that we eat errors from strtobool.
If people want to not do this, then it should be fixed at a later date.

V2: Simplification suggested by Rusty Russell removes the need for
additional variable ret.

Signed-off-by: Jonathan Cameron <jic23@....ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 fs/debugfs/file.c |   17 ++++-------------
 1 files changed, 4 insertions(+), 13 deletions(-)

diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 89d394d..568304d 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -429,25 +429,16 @@ static ssize_t write_file_bool(struct file *file, const char __user *user_buf,
 {
 	char buf[32];
 	int buf_size;
+	bool bv;
 	u32 *val = file->private_data;
 
 	buf_size = min(count, (sizeof(buf)-1));
 	if (copy_from_user(buf, user_buf, buf_size))
 		return -EFAULT;
 
-	switch (buf[0]) {
-	case 'y':
-	case 'Y':
-	case '1':
-		*val = 1;
-		break;
-	case 'n':
-	case 'N':
-	case '0':
-		*val = 0;
-		break;
-	}
-	
+	if (strtobool(buf, &bv) == 0)
+		*val = bv;
+
 	return count;
 }
 
-- 
1.7.4.2

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