linux-kernel - [PATCH 1/2] make module param bint handle nul value

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Message-ID: <20120201023311.GA9716@darkstar.nay.redhat.com>
Date:	Wed, 1 Feb 2012 10:33:11 +0800
From:	Dave Young <dyoung@...hat.com>
To:	rusty@...tcorp.com.au, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] make module param bint handle nul value

Allow bint param accept nul values, just do same as bool param.

Signed-off-by: Dave Young <dyoung@...hat.com>
Cc: Rusty Russell <rusty@...tcorp.com.au>
---
 kernel/params.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- linux-2.6.orig/kernel/params.c	2012-01-28 16:54:57.000000000 +0800
+++ linux-2.6/kernel/params.c	2012-01-31 16:16:18.723368198 +0800
@@ -97,7 +97,8 @@ static int parse_one(char *param,
 	for (i = 0; i < num_params; i++) {
 		if (parameq(param, params[i].name)) {
 			/* No one handled NULL, so do it here. */
-			if (!val && params[i].ops->set != param_set_bool)
+			if (!val && params[i].ops->set != param_set_bool
+			    && params[i].ops->set != param_set_bint)
 				return -EINVAL;
 			pr_debug("They are equal!  Calling %p\n",
 			       params[i].ops->set);
--
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