From: havoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Tue, 16 Nov 2004 12:14:51 +0000 (+0000)
Subject: now checks that a lightmap surfacechain is not NULL before dereferencing it
X-Git-Tag: xonotic-v0.1.0preview~5378
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=8a95a8af808dfad9de9252f939c7142cb2c58750;p=xonotic%2Fdarkplaces.git

now checks that a lightmap surfacechain is not NULL before dereferencing it


git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@4757 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/gl_rsurf.c b/gl_rsurf.c
index f8909668..72d39741 100644
--- a/gl_rsurf.c
+++ b/gl_rsurf.c
@@ -1299,8 +1299,9 @@ void R_UpdateLightmapInfo(entity_render_t *ent)
 		if (model->brushq1.light_stylevalue[i] != d_lightstylevalue[model->brushq1.light_style[i]])
 		{
 			model->brushq1.light_stylevalue[i] = d_lightstylevalue[model->brushq1.light_style[i]];
-			for (surfacechain = model->brushq1.light_styleupdatechains[i];(surface = *surfacechain);surfacechain++)
-				surface->cached_dlight = true;
+			if ((surfacechain = model->brushq1.light_styleupdatechains[i]))
+				for (;(surface = *surfacechain);surfacechain++)
+					surface->cached_dlight = true;
 		}
 	}
 }