drm/bridge: adv7511: Fix a use after free

We free "edid", then use it again on the next line.

Fixes: 3b1b975003e4 ("drm: adv7511/33: add HDMI CEC support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171017204343.zctliubjkq7imudi@mwanda

drivers/gpu/drm/bridge/adv7511/adv7511_drv.c

@@ -607,10 +607,10 @@ static int adv7511_get_modes(struct adv7511 *adv7511,
 	adv7511_set_config_csc(adv7511, connector, adv7511->rgb,
 			       drm_detect_hdmi_monitor(edid));
 
-	kfree(edid);
-
 	cec_s_phys_addr_from_edid(adv7511->cec_adap, edid);
 
+	kfree(edid);
+
 	return count;
 }