[PATCH 1/5] pinctrl: a minor error checking improvement for pinconf

[Dong Aisheng]

From: Dong Aisheng <dong.aisheng at linaro.org>

Also checking invalid num_configs when validate the pinconf map.

Signed-off-by: Dong Aisheng <dong.aisheng at linaro.org>
---
 drivers/pinctrl/pinconf.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index 7ce139e..43f474c 100644
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -50,9 +50,9 @@ int pinconf_validate_map(struct pinctrl_map const *map, int i)
 		return -EINVAL;
 	}
 
-	if (map->data.configs.num_configs &&
+	if (!map->data.configs.num_configs ||
 			!map->data.configs.configs) {
-		pr_err("failed to register map %s (%d): no configs ptr given\n",
+		pr_err("failed to register map %s (%d): no configs given\n",
 		       map->name, i);
 		return -EINVAL;
 	}
-- 
1.7.0.4