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dix: fix dereference before null check

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 55ff20eb37)
This commit is contained in:
Peter Hutterer 2012-06-25 14:22:31 +10:00 • committed by Jeremy Huddleston Sequoia
parent b99a4ac32c
commit b0e3696e01
1 changed files with 3 additions and 1 deletions
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4
dix/touch.c
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@ -160,11 +160,13 @@ TouchBeginDDXTouch(DeviceIntPtr dev, uint32_t ddx_id)
int i;
TouchClassPtr t = dev->touch;
DDXTouchPointInfoPtr ti = NULL;
Bool emulate_pointer = (t->mode == XIDirectTouch);
Bool emulate_pointer;
if (!t)
return NULL;
emulate_pointer = (t->mode == XIDirectTouch);
/* Look for another active touchpoint with the same DDX ID. DDX
* touchpoints must be unique. */
if (TouchFindByDDXID(dev, ddx_id, FALSE))