watchdog: at91rm9200: Correct check for syscon_node_to_regmap() errors

syscon_node_to_regmap() returns a regmap or an ERR_PTR().

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index 41cecb55766c..464bf76842a4 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -244,7 +244,7 @@ static int at91wdt_probe(struct platform_device *pdev)
         }
 
         regmap_st = syscon_node_to_regmap(parent->of_node);
-        if (!regmap_st)
+        if (IS_ERR(regmap_st))
                 return -ENODEV;
 
         res = misc_register(&at91wdt_miscdev);