[PATCH] drm/hyperv: Don't overwrite dirt_needed value set by host

[Wei Liu]

On Mon, Sep 12, 2022 at 08:32:46AM -0700, Saurabh Sengar wrote:
> Existing code is causing a race condition where dirt_needed value is
> already set by the host and gets overwritten with default value. Remove
> this default setting of dirt_needed, to avoid overwriting the value
> received in the channel callback set by vmbus_open. Removing this
> setting also means the default value for dirt_needed is changed to false
> as it's allocated by kzalloc which is similar to legacy hyperv_fb driver.
> 
> Signed-off-by: Saurabh Sengar <ssengar at linux.microsoft.com>

Applied to hyperv-next. Thanks.

I ended up reconstructing the patch myself since the said driver
changed. It is only a one line change so that's fine. If the committed
patch is wrong, please let me know.