From 4a9551237d44cb051c0a3d7a18d11d6be27ef1d9 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Mon, 11 Jul 2022 19:38:43 +0200 Subject: [PATCH] drm/vc4: drv: Use drm_dev_unplug When our KMS driver is unbound, the device is no longer there but we might still have users with an opened fd to the KMS device. To avoid any issue in such a situation, every device access needs to be protected by calls to drm_dev_enter() and drm_dev_exit(), and the driver needs to call drm_dev_unplug(). We'll add calls to drm_dev_enter()/drm_dev_exit() in subsequent patches changing the relevant drivers, but let's start by calling drm_dev_unplug(). Acked-by: Thomas Zimmermann Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20220711173939.1132294-14-maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_drv.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 6b8dfa1e7650d..79a37d18aeb12 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -399,8 +399,7 @@ static void vc4_drm_unbind(struct device *dev) { struct drm_device *drm = dev_get_drvdata(dev); - drm_dev_unregister(drm); - + drm_dev_unplug(drm); drm_atomic_helper_shutdown(drm); } -- 2.30.2