[Intel-gfx] [PATCH] Release front buffer bo when quit X

[Shuang He]

Forget to mention that, this leak happens with KMS or DRI2 is enabled

Thanks
    --Shuang

Shuang He wrote:
> As I checked X with valgrind, a memory leak is detected when quit X.
>
> ==23357== 0 bytes in 1 blocks are definitely lost in loss record 1 of 116
> ==23357==    at 0x55A962F: drm_intel_gem_bo_alloc_internal 
> (intel_bufmgr_gem.c:428)
> ==23357==    by 0x55A5192: drm_intel_bo_alloc (intel_bufmgr.c:51)
> ==23357==    by 0x55459CC: i830_allocate_memory (i830_memory.c:829)
> ==23357==    by 0x55463F5: i830_allocate_framebuffer (i830_memory.c:1268)
> ==23357==    by 0x556F786: drmmode_xf86crtc_resize (drmmode_display.c:674)
> ==23357==    by 0x816F530: xf86RandR12ScreenSetSize (xf86RandR12.c:705)
> ==23357==    by 0x816FC10: xf86RandR12CreateScreenResources 
> (xf86RandR12.c:833)
> ==23357==    by 0x80A225F: xf86CrtcCreateScreenResources (xf86Crtc.c:708)
> ==23357==    by 0x8064BD0: main (main.c:324)
>
> The attached patch would fix that.
>
> Thanks
>     --Shuang
>