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dix: don't allow for devices with 0 axes

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This just makes the existing behavior explicit, previously we relied on
a malloc(numAxes * ...) to return NULL to error out.

(cherry picked from commit 7aba2514b2)
This commit is contained in:
Peter Hutterer 2024-01-04 10:31:51 +10:00 • committed by Olivier Fourdan
parent 8134574102
commit d5c278fab4
1 changed files with 1 additions and 0 deletions
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dix/devices.c
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@ -1326,6 +1326,7 @@ InitValuatorClassDeviceStruct(DeviceIntPtr dev, int numAxes, Atom *labels,
ValuatorClassPtr valc;
BUG_RETURN_VAL(dev == NULL, FALSE);
BUG_RETURN_VAL(numAxes == 0, FALSE);
if (numAxes > MAX_VALUATORS) {
LogMessage(X_WARNING,