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author | Dave Airlie | 2017-04-10 23:41:10 +0200 |
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committer | Dave Airlie | 2017-04-10 23:41:10 +0200 |
commit | df45eaca51f4826f328859e5b203fbeab6fcf2a3 (patch) | |
tree | b5fb9f273f4dd914fce25bbe937737b31ba7cd70 /drivers/gpu/drm/drm_property.c | |
parent | Backmerge tag 'v4.11-rc6' into drm-next (diff) | |
parent | Revert "drm: Don't allow interruptions when opening debugfs/crc" (diff) | |
download | kernel-qcow2-linux-df45eaca51f4826f328859e5b203fbeab6fcf2a3.tar.gz kernel-qcow2-linux-df45eaca51f4826f328859e5b203fbeab6fcf2a3.tar.xz kernel-qcow2-linux-df45eaca51f4826f328859e5b203fbeab6fcf2a3.zip |
Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next
Last drm-misc-next pull req for 4.12
Core changes:
- fb_helper checkpatch cleanup and simplified _add_one_connector() (Thierry)
- drm_ioctl and drm_sysfs improved/gained documentation (Daniel)
- [ABI] Repurpose reserved field in drm_event_vblank for crtc_id (Ander)
- Plumb acquire ctx through legacy paths to avoid lock_all and legacy_backoff
(Daniel)
- Add connector_atomic_check to check conn constraints on modeset (Maarten)
- Add drm_of_find_panel_or_bridge to remove boilerplate in drivers (Rob)
Driver changes:
- meson moved to drm-misc (Neil)
- Added support for Amlogic GX SoCs in dw-hdmi (Neil)
- Rockchip unbind actually cleans up the things bind initializes (Jeffy)
- A couple misc fixes in virtio, dw-hdmi
NOTE: this also includes a backmerge of drm-next as well rc5 (we needed vmwgfx
as well as the new synopsys media formats)
* tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc: (77 commits)
Revert "drm: Don't allow interruptions when opening debugfs/crc"
drm: Only take cursor locks when the cursor plane exists
drm/vmwgfx: Fix fbdev emulation using legacy functions
drm/rockchip: Shutdown all crtcs when unbinding drm
drm/rockchip: Reorder drm bind/unbind sequence
drm/rockchip: analogix_dp: Disable clock when unbinding
drm/rockchip: vop: Unprepare clocks when unbinding
drm/rockchip: vop: Enable pm domain before vop_initial
drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding
drm/rockchip: cdn-dp: Don't try to release firmware when not loaded
drm: bridge: analogix: Destroy connector & encoder when unbinding
drm: bridge: analogix: Disable clock when unbinding
drm: bridge: analogix: Unregister dp aux when unbinding
drm: bridge: analogix: Detach panel when unbinding analogix dp
drm: Don't allow interruptions when opening debugfs/crc
drm/virtio: don't leak bo on drm_gem_object_init failure
drm: bridge: dw-hdmi: fix input format/encoding from plat_data
drm: omap: use common OF graph helpers
drm: convert drivers to use drm_of_find_panel_or_bridge
drm: convert drivers to use of_graph_get_remote_node
...
Diffstat (limited to 'drivers/gpu/drm/drm_property.c')
-rw-r--r-- | drivers/gpu/drm/drm_property.c | 72 |
1 files changed, 29 insertions, 43 deletions
diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c index b17959c3e099..3feef0659940 100644 --- a/drivers/gpu/drm/drm_property.c +++ b/drivers/gpu/drm/drm_property.c @@ -442,8 +442,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, struct drm_property *property; int enum_count = 0; int value_count = 0; - int ret = 0, i; - int copied; + int i, copied; struct drm_property_enum *prop_enum; struct drm_mode_property_enum __user *enum_ptr; uint64_t __user *values_ptr; @@ -451,55 +450,43 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; - drm_modeset_lock_all(dev); property = drm_property_find(dev, out_resp->prop_id); - if (!property) { - ret = -ENOENT; - goto done; - } - - if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || - drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { - list_for_each_entry(prop_enum, &property->enum_list, head) - enum_count++; - } - - value_count = property->num_values; + if (!property) + return -ENOENT; strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); out_resp->name[DRM_PROP_NAME_LEN-1] = 0; out_resp->flags = property->flags; - if ((out_resp->count_values >= value_count) && value_count) { - values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; - for (i = 0; i < value_count; i++) { - if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { - ret = -EFAULT; - goto done; - } + value_count = property->num_values; + values_ptr = u64_to_user_ptr(out_resp->values_ptr); + + for (i = 0; i < value_count; i++) { + if (i < out_resp->count_values && + put_user(property->values[i], values_ptr + i)) { + return -EFAULT; } } out_resp->count_values = value_count; + copied = 0; + enum_ptr = u64_to_user_ptr(out_resp->enum_blob_ptr); + if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || - drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { - if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { - copied = 0; - enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; - list_for_each_entry(prop_enum, &property->enum_list, head) { - - if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { - ret = -EFAULT; - goto done; - } - - if (copy_to_user(&enum_ptr[copied].name, - &prop_enum->name, DRM_PROP_NAME_LEN)) { - ret = -EFAULT; - goto done; - } - copied++; - } + drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { + list_for_each_entry(prop_enum, &property->enum_list, head) { + enum_count++; + if (out_resp->count_enum_blobs <= enum_count) + continue; + + if (copy_to_user(&enum_ptr[copied].value, + &prop_enum->value, sizeof(uint64_t))) + return -EFAULT; + + if (copy_to_user(&enum_ptr[copied].name, + &prop_enum->name, DRM_PROP_NAME_LEN)) + return -EFAULT; + copied++; } out_resp->count_enum_blobs = enum_count; } @@ -514,9 +501,8 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, */ if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) out_resp->count_enum_blobs = 0; -done: - drm_modeset_unlock_all(dev); - return ret; + + return 0; } static void drm_property_free_blob(struct kref *kref) |