From: kfx <kfx@rock-chips.com>
Date: Tue, 23 Oct 2012 10:44:24 +0000 (+0800)
Subject: adc_factory: return -EINVAL if fail to register adc channel
X-Git-Tag: firefly_0821_release~8334
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d7d623dd145817be50b6df182a6d487f9f2f79af;p=firefly-linux-kernel-4.4.55.git

adc_factory: return -EINVAL if fail to register adc channel
---

diff --git a/drivers/power/rk30_factory_adc_battery.c b/drivers/power/rk30_factory_adc_battery.c
index 0a4a3ea88687..d9fa95c3bf15 100644
--- a/drivers/power/rk30_factory_adc_battery.c
+++ b/drivers/power/rk30_factory_adc_battery.c
@@ -1547,12 +1547,12 @@ static int rk30_adc_battery_probe(struct platform_device *pdev)
 	memset(data->adc_samples, 0, sizeof(int)*(NUM_VOLTAGE_SAMPLE + 2));
 
 	 //register adc for battery sample
-	 if(0 == pdata->adc_channel)
-	client = adc_register(0, rk30_adc_battery_callback, NULL);  //pdata->adc_channel = ani0
-	else
-		client = adc_register(pdata->adc_channel, rk30_adc_battery_callback, NULL);  
-	if(!client)
+	client = adc_register(pdata->adc_channel, rk30_adc_battery_callback, NULL);  
+	if(!client){
+                printk(KERN_INFO "fail to register adc channel(%d)\n", pdata->adc_channel);
+                ret = -EINVAL;
 		goto err_adc_register_failed;
+        }
 	    
 	 //variable init
 	data->client  = client;