r600: make sure bos are valid before usign that

diff --git a/src/mesa/drivers/dri/r600/r700_chip.c b/src/mesa/drivers/dri/r600/r700_chip.c
index ad4f29b729d59e4ef68da9fa7c55234fd1a92498..78779e841d7a47784ae6900dcfcf2bed0bc84230 100644 (file)
--- a/src/mesa/drivers/dri/r600/r700_chip.c
+++ b/src/mesa/drivers/dri/r600/r700_chip.c
@@ -321,6 +321,9 @@ void r700SetupVTXConstants(GLcontext  * ctx,
     unsigned int uSQ_VTX_CONSTANT_WORD3_0 = 0;
     unsigned int uSQ_VTX_CONSTANT_WORD6_0 = 0;
 
+    if (!paos->bo)
+           return GL_FALSE;
+
     if ((context->radeon.radeonScreen->chip_family == CHIP_FAMILY_RV610) ||
        (context->radeon.radeonScreen->chip_family == CHIP_FAMILY_RV620) ||
        (context->radeon.radeonScreen->chip_family == CHIP_FAMILY_RS780) ||
@@ -594,6 +597,9 @@ GLboolean r700SendPSState(context_t *context)
 
        pbo = (struct radeon_bo *)r700GetActiveFpShaderBo(GL_CONTEXT(context));
 
+       if (!pbo)
+               return GL_FALSE;
+
        r700SyncSurf(context, pbo, RADEON_GEM_DOMAIN_GTT, 0, SH_ACTION_ENA_bit);
 
         BEGIN_BATCH_NO_AUTOSTATE(3);
@@ -623,6 +629,9 @@ GLboolean r700SendVSState(context_t *context)
 
        pbo = (struct radeon_bo *)r700GetActiveVpShaderBo(GL_CONTEXT(context));
 
+       if (!pbo)
+               return GL_FALSE;
+
        r700SyncSurf(context, pbo, RADEON_GEM_DOMAIN_GTT, 0, SH_ACTION_ENA_bit);
 
         BEGIN_BATCH_NO_AUTOSTATE(3);
@@ -660,6 +669,9 @@ GLboolean r700SendFSState(context_t *context)
        r700->fs.SQ_PGM_CF_OFFSET_FS.u32All = 0;
        /* XXX */
 
+       if (!pbo)
+               return GL_FALSE;
+
        r700SyncSurf(context, pbo, RADEON_GEM_DOMAIN_GTT, 0, SH_ACTION_ENA_bit);
 
         BEGIN_BATCH_NO_AUTOSTATE(3);

diff --git a/src/mesa/drivers/dri/r600/r700_render.c b/src/mesa/drivers/dri/r600/r700_render.c
index 5a1f04f87c23a18cbc530c94f61ba1537696c45a..2592d7df148b0103643b654da5f3d001e4676695 100644 (file)
--- a/src/mesa/drivers/dri/r600/r700_render.c
+++ b/src/mesa/drivers/dri/r600/r700_render.c
@@ -151,6 +151,9 @@ GLboolean r700SyncSurf(context_t *context,
     BATCH_LOCALS(&context->radeon);
     uint32_t cp_coher_size;
 
+    if (!pbo)
+           return GL_FALSE;
+
     if (pbo->size == 0xffffffff)
            cp_coher_size = 0xffffffff;
     else