diff mbox series

[01/10] drm/qxl: properly handle device init failures

Message ID 20210216113716.716996-2-kraxel@redhat.com (mailing list archive)
State New, archived
Headers show
Series drm/qxl: a collection of fixes | expand

Commit Message

Gerd Hoffmann Feb. 16, 2021, 11:37 a.m. UTC
Specifically do not try release resources which where
not allocated in the first place.

Cc: Tong Zhang <ztong0001@gmail.com>
Tested-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/qxl/qxl_display.c | 3 +++
 drivers/gpu/drm/qxl/qxl_kms.c     | 4 ++++
 2 files changed, 7 insertions(+)

Comments

Thomas Zimmermann Feb. 16, 2021, 1:08 p.m. UTC | #1
Am 16.02.21 um 12:37 schrieb Gerd Hoffmann:
> Specifically do not try release resources which where
> not allocated in the first place.

I still think this should eventually be resolved by using managed code. 
But for now

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>

> 
> Cc: Tong Zhang <ztong0001@gmail.com>
> Tested-by: Tong Zhang <ztong0001@gmail.com>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>   drivers/gpu/drm/qxl/qxl_display.c | 3 +++
>   drivers/gpu/drm/qxl/qxl_kms.c     | 4 ++++
>   2 files changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
> index c326412136c5..ec50d2cfd4e1 100644
> --- a/drivers/gpu/drm/qxl/qxl_display.c
> +++ b/drivers/gpu/drm/qxl/qxl_display.c
> @@ -1183,6 +1183,9 @@ int qxl_destroy_monitors_object(struct qxl_device *qdev)
>   {
>   	int ret;
>   
> +	if (!qdev->monitors_config_bo)
> +		return 0;
> +
>   	qdev->monitors_config = NULL;
>   	qdev->ram_header->monitors_config = 0;
>   
> diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
> index 66d74aaaee06..4dc5ad13f12c 100644
> --- a/drivers/gpu/drm/qxl/qxl_kms.c
> +++ b/drivers/gpu/drm/qxl/qxl_kms.c
> @@ -288,6 +288,10 @@ void qxl_device_fini(struct qxl_device *qdev)
>   {
>   	int cur_idx;
>   
> +	/* check if qxl_device_init() was successful (gc_work is initialized last) */
> +	if (!qdev->gc_work.func)
> +		return;
> +
>   	for (cur_idx = 0; cur_idx < 3; cur_idx++) {
>   		if (!qdev->current_release_bo[cur_idx])
>   			continue;
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index c326412136c5..ec50d2cfd4e1 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -1183,6 +1183,9 @@  int qxl_destroy_monitors_object(struct qxl_device *qdev)
 {
 	int ret;
 
+	if (!qdev->monitors_config_bo)
+		return 0;
+
 	qdev->monitors_config = NULL;
 	qdev->ram_header->monitors_config = 0;
 
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 66d74aaaee06..4dc5ad13f12c 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -288,6 +288,10 @@  void qxl_device_fini(struct qxl_device *qdev)
 {
 	int cur_idx;
 
+	/* check if qxl_device_init() was successful (gc_work is initialized last) */
+	if (!qdev->gc_work.func)
+		return;
+
 	for (cur_idx = 0; cur_idx < 3; cur_idx++) {
 		if (!qdev->current_release_bo[cur_idx])
 			continue;