Update adc.c

check fun is NULL, error
2018-12-08 22:56:34 +08:00 · 2018-12-08 22:56:34 +08:00 · 895fb5c1a9
parent 506ccc573c
commit 895fb5c1a9
1 changed files with 1 additions and 1 deletions
--- a/components/drivers/misc/adc.c
+++ b/components/drivers/misc/adc.c
@ -46,7 +46,7 @@ static rt_err_t _adc_control(rt_device_t dev, int cmd, void *args)
    rt_err_t result = RT_EOK;
    rt_adc_device_t adc = (struct rt_adc_device *)dev;

-    if (adc->ops->enabled != RT_NULL)
+    if (adc->ops->enabled == RT_NULL)
    {
        return -RT_ENOSYS;
    }