[PATCH] drm: bridge: it66121: ->get_edid callback must not return err pointers

[Jani Nikula]

The drm stack does not expect error valued pointers for EDID anywhere.

Fixes: e66856508746 ("drm: bridge: it66121: Set DDC preamble only once before reading EDID")
Cc: Paul Cercueil <paul at crapouillou.net>
Cc: Robert Foss <robert.foss at linaro.org>
Cc: Phong LE <ple at baylibre.com>
Cc: Neil Armstrong <neil.armstrong at linaro.org>
Cc: Andrzej Hajda <andrzej.hajda at intel.com>
Cc: Robert Foss <rfoss at kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart at ideasonboard.com>
Cc: Jonas Karlman <jonas at kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec at gmail.com>
Cc: <stable at vger.kernel.org> # v6.3+
Signed-off-by: Jani Nikula <jani.nikula at intel.com>

---

UNTESTED
---
 drivers/gpu/drm/bridge/ite-it66121.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c
index 3c9b42c9d2ee..1cf3fb1f13dc 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -884,14 +884,14 @@ static struct edid *it66121_bridge_get_edid(struct drm_bridge *bridge,
 	mutex_lock(&ctx->lock);
 	ret = it66121_preamble_ddc(ctx);
 	if (ret) {
-		edid = ERR_PTR(ret);
+		edid = NULL;
 		goto out_unlock;
 	}
 
 	ret = regmap_write(ctx->regmap, IT66121_DDC_HEADER_REG,
 			   IT66121_DDC_HEADER_EDID);
 	if (ret) {
-		edid = ERR_PTR(ret);
+		edid = NULL;
 		goto out_unlock;
 	}
 
-- 
2.39.2