xtscal: Fix the endless loop when starting X

xtscal script in Xsession.d would lead endless loop if /etc/pointercal is
missing, which make the system hang.

This fix adds a counter for loop.

[BUGID #251] got fixed by this.

Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/meta/recipes-graphics/xtscal/xtscal/30xTs_Calibrate.sh b/meta/recipes-graphics/xtscal/xtscal/30xTs_Calibrate.sh
index ee55784548..b8383bf86b 100644
--- a/meta/recipes-graphics/xtscal/xtscal/30xTs_Calibrate.sh
+++ b/meta/recipes-graphics/xtscal/xtscal/30xTs_Calibrate.sh
@@ -3,8 +3,11 @@
 . /etc/formfactor/config
 
 if [ "$HAVE_TOUCHSCREEN" = "1" ]; then
-        while [ ! -z $TSLIB_TSDEVICE ] && [ ! -f /etc/pointercal ]
+        n=1
+        while [ ! -z $TSLIB_TSDEVICE ] && [ ! -f /etc/pointercal ] && [ $n -le 5 ]
         do
            /usr/bin/xtscal
+           sleep 1
+           let "n += 1"
         done
 fi