[PATCH] drm/i915/gvt: Make function dpy_reg_mmio_readx safe

[Zhenyu Wang]

On 2017.06.13 10:15:26 +0800, changbin.du at intel.com wrote:
> From: Changbin Du <changbin.du at intel.com>
> 
> The dpy_reg_mmio_read_x functions directly copy 4 bytes data to the
> target address with considering the length. If may cause the target
> memory corrupted if the requested length less than 4 bytes. Fix it
> for safety even we already have some checking to avoid this happen.
> And for convince, the 3 functions are merged.
> 

applied, thanks!

-- 
Open Source Technology Center, Intel ltd.

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