is err

diff --git a/kdev-gpio/kdev_gpio.c b/kdev-gpio/kdev_gpio.c
index d12c8c562a6c3e48150fa5b014590b74b8e34416..68065e5a12da858a591f60946f4fca5a1313995c 100644 (file)
--- a/kdev-gpio/kdev_gpio.c
+++ b/kdev-gpio/kdev_gpio.c
@@ -33,7 +33,7 @@ static int __init kdev_gpio_init(void){
         return -1;
     }
     d = container_of(&dn, struct device, of_node);
-    if(d == NULL){
+    if(IS_ERR(d)){
         printk("failed to get device from node\n");
         return -1;
     }