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xlib: add null ctx check in glXDestroyContext() 

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64934
NOTE: This is a candidate for the stable branches.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul 2013-05-24 08:06:19 -06:00
parent fd29e4acda
commit fd9fe4470b
1 changed files with 12 additions and 10 deletions
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22
src/mesa/drivers/x11/fakeglx.c
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@ -1533,16 +1533,18 @@ void _kw_ungrab_all( Display *dpy )
static void
Fake_glXDestroyContext( Display *dpy, GLXContext ctx )
{
struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
(void) dpy;
MakeCurrent_PrevContext = 0;
MakeCurrent_PrevDrawable = 0;
MakeCurrent_PrevReadable = 0;
MakeCurrent_PrevDrawBuffer = 0;
MakeCurrent_PrevReadBuffer = 0;
XMesaDestroyContext( glxCtx->xmesaContext );
XMesaGarbageCollect(dpy);
free(glxCtx);
if (ctx) {
struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
(void) dpy;
MakeCurrent_PrevContext = 0;
MakeCurrent_PrevDrawable = 0;
MakeCurrent_PrevReadable = 0;
MakeCurrent_PrevDrawBuffer = 0;
MakeCurrent_PrevReadBuffer = 0;
XMesaDestroyContext( glxCtx->xmesaContext );
XMesaGarbageCollect(dpy);
free(glxCtx);
}
}