Hi Haoxiang,

For reasons that I have not uncovered yet, the work email servers never delivered your message, I have discovered it today accidentally while looking in a backup I have at home.

On Thu, Dec 19, 2024 at 05:02:56PM +0800, Haoxiang Li wrote:

Add check for the return value of komeda_get_layer_fourcc_list() to catch the potential exception.

Fixes: 5d51f6c0da1b ("drm/komeda: Add writeback support") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li haoxiang_li2024@163.com

Acked-by: Liviu Dudau liviu.dudau@arm.com

Best regards, Liviu

---

drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c index ebccb74306a7..f30b3d5eeca5 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c @@ -160,6 +160,10 @@ static int komeda_wb_connector_add(struct komeda_kms_dev *kms, formats = komeda_get_layer_fourcc_list(&mdev->fmt_tbl, kwb_conn->wb_layer->layer_type, &n_formats);

• if (!formats) {

• kfree(kwb_conn);
  

• return -ENOMEM;
  

• }

err = drm_writeback_connector_init(&kms->base, wb_conn, &komeda_wb_connector_funcs, -- 2.25.1