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Xi: limit valuator copy to valuator array size (#59939)

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mask[(MAX_VALUATORS + 7)/8] is larger than data[MAX_VALUATORS], so static
code checkers think we may be running OOB on the data array. Mask is
initialized to 0, so this should not happen, but change it anyway to shut up
code analyzer noise.

X.Org Bug 59939 <http://bugs.freedesktop.org/show_bug.cgi?id=59939>

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
This commit is contained in:
Peter Hutterer 2013-01-29 11:01:29 +10:00
parent 48bc30c541
commit fdc4515888
1 changed files with 1 additions and 1 deletions
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2
Xi/exevents.c
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@ -1263,7 +1263,7 @@ TouchCopyValuatorData(DeviceEvent *ev, TouchPointInfoPtr ti)
{
int i;
for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++)
for (i = 0; i < ARRAY_SIZE(ev->valuators.data); i++)
if (BitIsOn(ev->valuators.mask, i))
valuator_mask_set_double(ti->valuators, i, ev->valuators.data[i]);
}