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Avoid dereferencing a NULL pointer during VT switches when composite

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Fix confirmed to fix observed crash by dcoppa@ canacar@. ok marco@.
This commit is contained in:
matthieu 2011-02-11 21:01:55 +00:00
parent eccb1b24fc
commit be5ccdb873
1 changed files with 6 additions and 1 deletions
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7
driver/xf86-video-intel/src/i965_render.c
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@ -1477,10 +1477,15 @@ i965_prepare_composite(int op, PicturePtr source_picture,
ScrnInfoPtr scrn = xf86Screens[dest_picture->pDrawable->pScreen->myNum];
intel_screen_private *intel = intel_get_screen_private(scrn);
struct gen4_render_state *render_state = intel->gen4_render_state;
gen4_composite_op *composite_op = &render_state->composite_op;
gen4_composite_op *composite_op;
uint32_t *binding_table;
drm_intel_bo *binding_table_bo, *surface_state_bo;
if (render_state == NULL)
return FALSE;
composite_op = &render_state->composite_op;
composite_op->src_filter =
sampler_state_filter_from_picture(source_picture->filter);
if (composite_op->src_filter < 0) {