[PATCH 1/2] parameter: return empty string for unset parameters

[Sascha Hauer]

Currently we return NULL for unset parameters. As we can't set them
back to NULL once set this is not very consistent. Return an empty
string instead.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 lib/parameter.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/parameter.c b/lib/parameter.c
index baf7720..c75c21e 100644
--- a/lib/parameter.c
+++ b/lib/parameter.c
@@ -135,7 +135,7 @@ int dev_param_set_generic(struct device_d *dev, struct param_d *p,
 
 static const char *param_get_generic(struct device_d *dev, struct param_d *p)
 {
-	return p->value;
+	return p->value ? p->value : "";
 }
 
 static struct param_d *__dev_add_param(struct device_d *dev, const char *name,
-- 
1.7.10