From: Alex Deucher <alexdeucher@gmail.com>
Date: Tue, 26 May 2009 15:13:44 +0000 (-0400)
Subject: fix segfault when running glxinfo
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=17417fc8eeaf5f88452fa3d37a763cee3c92a28c;p=mesa.git

fix segfault when running glxinfo
---

diff --git a/src/mesa/drivers/dri/r600/r600_context.c b/src/mesa/drivers/dri/r600/r600_context.c
index e6c03ecfd51..5be486b176a 100644
--- a/src/mesa/drivers/dri/r600/r600_context.c
+++ b/src/mesa/drivers/dri/r600/r600_context.c
@@ -453,9 +453,10 @@ void
 r600DestroyContext (__DRIcontextPrivate * driContextPriv)
 {
     GET_CURRENT_CONTEXT (ctx);
-    context_t *context = R700_CONTEXT(ctx);
+    context_t *context = ctx ? R700_CONTEXT(ctx) : NULL;
 
-    (context->chipobj.DestroyChipObj)(context->chipobj.pvChipObj);
+    if (context)
+	    (context->chipobj.DestroyChipObj)(context->chipobj.pvChipObj);
 }
 
 
diff --git a/src/mesa/drivers/dri/r600/r600_emit.c b/src/mesa/drivers/dri/r600/r600_emit.c
index dee4cd3435f..e4ba656ee84 100644
--- a/src/mesa/drivers/dri/r600/r600_emit.c
+++ b/src/mesa/drivers/dri/r600/r600_emit.c
@@ -234,8 +234,10 @@ GLboolean r600DeleteShader(GLcontext * ctx,
 {
     struct radeon_bo * pbo = (struct radeon_bo *)shaderbo;
 
-    radeon_bo_unmap(pbo);
-    radeon_bo_unref(pbo); /* when bo->cref <= 0, bo will be bo_free */
+    if (pbo) {
+	    radeon_bo_unmap(pbo);
+	    radeon_bo_unref(pbo); /* when bo->cref <= 0, bo will be bo_free */
+    }
 
     return GL_TRUE;
 }
diff --git a/src/mesa/drivers/dri/radeon/radeon_common_context.c b/src/mesa/drivers/dri/radeon/radeon_common_context.c
index 409825182e3..1e900865f02 100644
--- a/src/mesa/drivers/dri/radeon/radeon_common_context.c
+++ b/src/mesa/drivers/dri/radeon/radeon_common_context.c
@@ -233,7 +233,7 @@ void radeonDestroyContext(__DRIcontextPrivate *driContextPriv )
 #if RADEON_COMMON && defined(RADEON_COMMON_FOR_R600) /* +r6/r7 */
 	    if (IS_R600_CLASS(screen))
         {
-		    r600DestroyContext(driContextPriv);
+		r600DestroyContext(driContextPriv);
         }
 #endif
 
@@ -267,6 +267,9 @@ void radeonDestroyContext(__DRIcontextPrivate *driContextPriv )
 		
 		rcommonDestroyCmdBuf(radeon);
 
+#if RADEON_COMMON && defined(RADEON_COMMON_FOR_R600) /* +r6/r7 */
+	    if (!IS_R600_CLASS(screen))
+#endif
 		radeon_destroy_atom_list(radeon);
 
 		if (radeon->state.scissor.pClipRects) {