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SUSE:SLE-12-SP1:GA
xorg-x11-server.390
u_dri2_fix-detection-of-wrong-prime_id-in-getsc...
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File u_dri2_fix-detection-of-wrong-prime_id-in-getscreenprime.patch of Package xorg-x11-server.390
Subject: [PATCH] dri2: Fix wrong prime_id detection in GetScreenPrime. Author: Michal Srb <msrb@suse.com> Patch-Mainline: To be upstreamed References: bnc#846352 Checking the iterating variable ("slave") against null can not detect if the xorg_list_for_each_entry finished without break being invoked - it will be always non-null. This caused segfault whenever someone tried to use DRI_PRIME with incorrect id. Restructurize it to work as expected. diff --git a/hw/xfree86/dri2/dri2.c b/hw/xfree86/dri2/dri2.c index 729a323..5b2c662 100644 --- a/hw/xfree86/dri2/dri2.c +++ b/hw/xfree86/dri2/dri2.c @@ -156,11 +156,9 @@ GetScreenPrime(ScreenPtr master, int prime_id) ds = DRI2GetScreen(slave); if (ds->prime_id == prime_id) - break; + return slave; } - if (!slave) - return master; - return slave; + return master; } static DRI2ScreenPtr
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