[ Upstream commit c62102165dd79284d42383d2f7ed17301bd8e629 ] In case mipi_dsi_attach() fails, call drm_panel_remove() to avoid memory leak. Fixes: 849b2e3ff969 ("drm/panel: Add Sitronix ST7701 panel driver") Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221014231106.468063-1-marex@denx.de Signed-off-by: Sasha Levin <sashal@kernel.org>