@@ -484,6 +484,7 @@ static void innolux_panel_del(struct innolux_panel *innolux)
static int innolux_panel_probe(struct mipi_dsi_device *dsi)
{
const struct panel_desc *desc;
+ struct innolux_panel *innolux;
int err;
desc = of_device_get_match_data(&dsi->dev);
@@ -495,7 +496,14 @@ static int innolux_panel_probe(struct mipi_dsi_device *dsi)
if (err < 0)
return err;
- return mipi_dsi_attach(dsi);
+ err = mipi_dsi_attach(dsi);
+ if (err < 0) {
+ innolux = mipi_dsi_get_drvdata(dsi);
+ innolux_panel_del(innolux);
+ return err;
+ }
+
+ return 0;
}
static int innolux_panel_remove(struct mipi_dsi_device *dsi)
If we fail to attach (e.g., because 1 of 2 dual-DSI controllers aren't ready), we leave a dangling drm_panel reference to freed memory. Clean that up on failure. This problem exists since the driver's introduction, but is especially relevant after refactored for dual-DSI variants. Fixes: 14c8f2e9f8ea ("drm/panel: add Innolux P079ZCA panel driver") Fixes: 7ad4e4636c54 ("drm/panel: p079zca: Refactor panel driver to support multiple panels") Signed-off-by: Brian Norris <briannorris@chromium.org> --- drivers/gpu/drm/panel/panel-innolux-p079zca.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)