linux-kernel - [PATCH v2 2/2] drm/ast: Fix connector leak during driver unload

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Date:   Mon,  3 Dec 2018 11:53:21 +1100
From:   Sam Bobroff <sbobroff@...ux.ibm.com>
To:     daniel@...ll.ch, airlied@...hat.com, airlied@...ux.ie,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] drm/ast: Fix connector leak during driver unload

When unloading the ast driver, a warning message is printed by
drm_mode_config_cleanup() because a reference is still held to one of
the drm_connector structs.

Correct this by calling drm_crtc_force_disable_all() in
ast_fbdev_destroy().

Signed-off-by: Sam Bobroff <sbobroff@...ux.ibm.com>
---
v2 * Changed to use drm_crtc_force_disable_all().

 drivers/gpu/drm/ast/ast_fb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c
index 0cd827e11fa2..de26df0c6044 100644
--- a/drivers/gpu/drm/ast/ast_fb.c
+++ b/drivers/gpu/drm/ast/ast_fb.c
@@ -263,6 +263,7 @@ static void ast_fbdev_destroy(struct drm_device *dev,
 {
 	struct ast_framebuffer *afb = &afbdev->afb;
 
+	drm_crtc_force_disable_all(dev);
 	drm_fb_helper_unregister_fbi(&afbdev->helper);
 
 	if (afb->obj) {
-- 
2.19.0.2.gcad72f5712