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glx: avoid possible NULLptr deref, fix #16884

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This commit is contained in:
Jie Luo
2008-08-17 23:13:22 +02:00
committed by Maarten Maathuis
parent 421b7e8f12
commit 99583b43a9
1 changed files with 8 additions and 4 deletions
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4
glx/glxcmds.c
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@@ -148,7 +148,9 @@ void
__glXContextDestroy(__GLXcontext *context)
{
if (!context->isDirect) {
if (context->drawPriv)
__glXUnrefDrawable(context->drawPriv);
if (context->readPriv)
__glXUnrefDrawable(context->readPriv);
}
__glXFlushContextCache();
@@ -621,7 +623,9 @@ DoMakeCurrent(__GLXclientState *cl,
}
__glXFlushContextCache();
if (!prevglxc->isDirect) {
if (prevglxc->drawPriv)
__glXUnrefDrawable(prevglxc->drawPriv);
if (prevglxc->readPriv)
__glXUnrefDrawable(prevglxc->readPriv);
}
}