From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 9 Sep 2008 15:21:18 +0000 (+0100)
Subject: regulator: check for init_data on registration
X-Git-Tag: v2.6.28-rc1~577^2~23
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=46fabe1edd44a8893d88d7982f88d01ccf77f0bb;p=linux-2.6-omap-h63xx.git

regulator: check for init_data on registration

Since it is now mandatory to supply constraints via init_data on device
registration check for that when registering, saving us from oopsing
later on.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
---

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 84202eaace5..65e07b941a3 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1691,6 +1691,9 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	    !regulator_desc->type == REGULATOR_CURRENT)
 		return ERR_PTR(-EINVAL);
 
+	if (!init_data)
+		return ERR_PTR(-EINVAL);
+
 	rdev = kzalloc(sizeof(struct regulator_dev), GFP_KERNEL);
 	if (rdev == NULL)
 		return ERR_PTR(-ENOMEM);