xfree86: xv: fix double free in xf86XVFreeAdaptor
When xf86XVFreeAdaptor is called more than once in xf86XVInitAdaptors (it may, but not often), the conditional being changed in this patch will always take true path and will keep freeing pAdaptor->pAttributes, thus letting the system error-prone. This patch fix such problem checking for a pointer instead the number of attributes. Such pointer will be deallocated when xf86XVFreeAdaptor is called first and will not let the code re-run in the following calls. This is a bit similar how the surroundings code is already doing. Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
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@ -343,12 +343,13 @@ xf86XVFreeAdaptor(XvAdaptorPtr pAdaptor)
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free(pAdaptor->pPorts);
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}
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if(pAdaptor->nAttributes) {
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if(pAdaptor->pAttributes) {
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XvAttributePtr pAttribute = pAdaptor->pAttributes;
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for(i = 0; i < pAdaptor->nAttributes; i++, pAttribute++)
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free(pAttribute->name);
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free(pAdaptor->pAttributes);
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pAdaptor->pAttributes = NULL;
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}
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free(pAdaptor->pImages);
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