From: wuhao <wuhao@wuhao@rock-chips.com>
Date: Wed, 14 Nov 2012 01:55:14 +0000 (+0800)
Subject: rk292x sitronix: while perform direction_otation ,determine whether pdata is NULL
X-Git-Tag: firefly_0821_release~8226
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2b8c15e987f4cf35a5ad51d7562dce3552166537;p=firefly-linux-kernel-4.4.55.git

rk292x sitronix: while perform direction_otation ,determine whether pdata is NULL
---

diff --git a/drivers/input/touchscreen/sitronix_ts_a720.c b/drivers/input/touchscreen/sitronix_ts_a720.c
index 5ed48608d74d..d0ba590c6d19 100755
--- a/drivers/input/touchscreen/sitronix_ts_a720.c
+++ b/drivers/input/touchscreen/sitronix_ts_a720.c
@@ -827,7 +827,7 @@ static void sitronix_ts_work_func(struct work_struct *work)
 				input_report_abs(ts->input_dev,  ABS_MT_TRACKING_ID, i);
 				input_report_abs(ts->input_dev,  ABS_MT_TOUCH_MAJOR, 200);
 				
-				if(pdata->direction_otation)
+				if( pdata && (pdata->direction_otation) )
 				{
 				      int temp_x , temp_y ;
 				      temp_x = MTDStructure[i].Pixel_X ;