[PATCH 1/2] drm/panel: boe-bf060y8m-aj0: use devm_drm_panel_add()

[Myeonghun Pak]

boe_bf060y8m_aj0_probe() adds the panel before attaching the DSI
device. If mipi_dsi_attach() fails, probe returns with the panel still
registered.

drm-misc-next has devm_drm_panel_add(), so use it to register the panel
with devres-managed cleanup. This removes the need for open-coded
drm_panel_remove() handling on later probe failures and on the remove
path.

This issue was identified during our ongoing static-analysis research while
reviewing kernel code.

Fixes: a19125a28112 ("drm/panel: Add BOE BF060Y8M-AJ0 5.99" AMOLED panel driver")
Cc: stable@xxxxxxxxxxxxxxx
Co-developed-by: Ijae Kim <ae878000@xxxxxxxxx>
Signed-off-by: Ijae Kim <ae878000@xxxxxxxxx>
Signed-off-by: Myeonghun Pak <mhun512@xxxxxxxxx>
---
 drivers/gpu/drm/panel/panel-boe-bf060y8m-aj0.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-boe-bf060y8m-aj0.c b/drivers/gpu/drm/panel/panel-boe-bf060y8m-aj0.c
index 84c21c62a4..a6d765b402 100644
--- a/drivers/gpu/drm/panel/panel-boe-bf060y8m-aj0.c
+++ b/drivers/gpu/drm/panel/panel-boe-bf060y8m-aj0.c
@@ -357,7 +357,9 @@ static int boe_bf060y8m_aj0_probe(struct mipi_dsi_device *dsi)
 		return dev_err_probe(dev, PTR_ERR(boe->panel.backlight),
 				     "Failed to create backlight\n");
 
-	drm_panel_add(&boe->panel);
+	ret = devm_drm_panel_add(dev, &boe->panel);
+	if (ret)
+		return ret;
 
 	ret = mipi_dsi_attach(dsi);
 	if (ret < 0) {
@@ -376,8 +378,6 @@ static void boe_bf060y8m_aj0_remove(struct mipi_dsi_device *dsi)
 	ret = mipi_dsi_detach(dsi);
 	if (ret < 0)
 		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
-
-	drm_panel_remove(&boe->panel);
 }
 
 static const struct of_device_id boe_bf060y8m_aj0_of_match[] = {
-- 
2.47.1