linux-kernel - [PATCH 3/3] params.c: Use new kstrtobool implementation to processing boolean inputs.

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Message-Id: <1300887554-19031-4-git-send-email-jic23@cam.ac.uk>
Date:	Wed, 23 Mar 2011 13:39:14 +0000
From:	Jonathan Cameron <jic23@....ac.uk>
To:	linux-kernel@...r.kernel.org
Cc:	greg@...ah.com, rusty@...tcorp.com.au, adobriyan@...il.com,
	Jonathan Cameron <jic23@....ac.uk>
Subject: [PATCH 3/3] params.c: Use new kstrtobool implementation to processing boolean inputs.

Signed-off-by: Jonathan Cameron <jic23@....ac.uk>
---
 kernel/params.c |   15 ++++-----------
 1 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/kernel/params.c b/kernel/params.c
index 0da1411..37b4d83 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -297,3 +297,4 @@ EXPORT_SYMBOL(param_ops_charp);
 int param_set_bool(const char *val, const struct kernel_param *kp)
 {
 	bool v;
+	int ret;

 	/* No equals means "set"... */
 	if (!val) val = "1";
 
 	/* One of =[yYnN01] */
-	switch (val[0]) {
-	case 'y': case 'Y': case '1':
-		v = true;
-		break;
-	case 'n': case 'N': case '0':
-		v = false;
-		break;
-	default:
-		return -EINVAL;
-	}
+	ret = kstrtobool(val, &v);
+	if (ret)
+		return ret;
 
 	if (kp->flags & KPARAM_ISBOOL)
 		*(bool *)kp->arg = v;
-- 
1.7.3.4

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