6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Haoxiang Li <haoxiang_li2024@xxxxxxx>
commit 79fc672a092d93a7eac24fe20a571d4efd8fa5a4 upstream.
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@xxxxxxxxxxxxxxx
Signed-off-by: Haoxiang Li <haoxiang_li2024@xxxxxxx>
Acked-by: Liviu Dudau <liviu.dudau@xxxxxxx>
Link: https://lore.kernel.org/r/20241219090256.146424-1-haoxiang_li2024@xxxxxxx
Signed-off-by: Liviu Dudau <liviu.dudau@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c | 4 ++++
1 file changed, 4 insertions(+)
--- 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(struc
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,
