This adds a shortcut when no valid pinconf properties are found
in the parsed dt node, to set the values immediately and return.

Suggested-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Signed-off-by: Heiko Stuebner <he...@sntech.de>
---
 drivers/pinctrl/pinconf-generic.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/pinctrl/pinconf-generic.c 
b/drivers/pinctrl/pinconf-generic.c
index dcf0371..ea9da17 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -208,6 +208,13 @@ int pinconf_generic_parse_dt_config(struct device_node *np,
                ncfg++;
        }
 
+       /* no configs found at all */
+       if (ncfg == 0) {
+               *configs = NULL;
+               *nconfigs = 0;
+               return 0;
+       }
+
        /*
         * Now limit the number of configs to the real number of
         * found properties.
-- 
1.7.10.4

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