regulator: Check for constraints before using them for name

Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Liam Girdwood <[email protected]>
mrcsosa · Sep 22, 2009 · b39480a · b39480a
1 parent c53ad7f
commit b39480a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
@@ -232,7 +232,7 @@ static ssize_t regulator_name_show(struct device *dev,
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 	const char *name;
 
-	if (rdev->constraints->name)
+	if (rdev->constraints && rdev->constraints->name)
 		name = rdev->constraints->name;
 	else if (rdev->desc->name)
 		name = rdev->desc->name;