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Commit fb3b06c8 authored by Dave Airlie's avatar Dave Airlie
Browse files

drm: check for modesetting on modeset ioctls 



Noticed this while working on some other things, helps if we check for modeset
enabled on modesetting ioctls.

Cc: stable@kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 19b01b5f

drivers/gpu/drm/drm_crtc.c

+51 −0
Original line number Diff line number Diff line
@@ -1073,6 +1073,9 @@ int drm_mode_getresources(struct drm_device *dev, void *data, 
	uint32_t __user *encoder_id;

	struct drm_mode_group *mode_group;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);



	/*
@@ -1244,6 +1247,9 @@ int drm_mode_getcrtc(struct drm_device *dev, 
	struct drm_mode_object *obj;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);



	obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
@@ -1312,6 +1318,9 @@ int drm_mode_getconnector(struct drm_device *dev, void *data, 
	uint64_t __user *prop_values;

	uint32_t __user *encoder_ptr;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));



	DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
@@ -1431,6 +1440,9 @@ int drm_mode_getencoder(struct drm_device *dev, void *data, 
	struct drm_encoder *encoder;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, enc_resp->encoder_id,

				   DRM_MODE_OBJECT_ENCODER);
@@ -1486,6 +1498,9 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, 
	int ret = 0;

	int i;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, crtc_req->crtc_id,

				   DRM_MODE_OBJECT_CRTC);
@@ -1603,6 +1618,9 @@ int drm_mode_cursor_ioctl(struct drm_device *dev, 
	struct drm_crtc *crtc;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	if (!req->flags) {

		DRM_ERROR("no operation set\n");

		return -EINVAL;
@@ -1667,6 +1685,9 @@ int drm_mode_addfb(struct drm_device *dev, 
	struct drm_framebuffer *fb;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	if ((config->min_width > r->width) || (r->width > config->max_width)) {

		DRM_ERROR("mode new framebuffer width not within limits\n");

		return -EINVAL;
@@ -1724,6 +1745,9 @@ int drm_mode_rmfb(struct drm_device *dev, 
	int ret = 0;

	int found = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);

	/* TODO check that we realy get a framebuffer back. */
@@ -1780,6 +1804,9 @@ int drm_mode_getfb(struct drm_device *dev, 
	struct drm_framebuffer *fb;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);

	if (!obj) {
@@ -1813,6 +1840,9 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 
	int num_clips;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);

	if (!obj) {
@@ -1996,6 +2026,9 @@ int drm_mode_attachmode_ioctl(struct drm_device *dev, 
	struct drm_mode_modeinfo *umode = &mode_cmd->mode;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);



	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
@@ -2042,6 +2075,9 @@ int drm_mode_detachmode_ioctl(struct drm_device *dev, 
	struct drm_mode_modeinfo *umode = &mode_cmd->mode;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);



	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
@@ -2211,6 +2247,9 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, 
	uint64_t __user *values_ptr;

	uint32_t __user *blob_length_ptr;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);

	if (!obj) {
@@ -2333,6 +2372,9 @@ int drm_mode_getblob_ioctl(struct drm_device *dev, 
	int ret = 0;

	void *blob_ptr;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);

	if (!obj) {
@@ -2393,6 +2435,9 @@ int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 
	int ret = -EINVAL;

	int i;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);



	obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
@@ -2509,6 +2554,9 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev, 
	int size;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);

	if (!obj) {
@@ -2560,6 +2608,9 @@ int drm_mode_gamma_get_ioctl(struct drm_device *dev, 
	int size;

	int ret = 0;



	if (!drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);

	if (!obj) {