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Diffstat (limited to 'drivers/gpu/drm/drm_property.c')
| -rw-r--r-- | drivers/gpu/drm/drm_property.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c index 3e88fa24eab3..bc5128203056 100644 --- a/drivers/gpu/drm/drm_property.c +++ b/drivers/gpu/drm/drm_property.c @@ -709,6 +709,29 @@ err_created: } EXPORT_SYMBOL(drm_property_replace_global_blob); +/** + * drm_property_replace_blob - replace a blob property + * @blob: a pointer to the member blob to be replaced + * @new_blob: the new blob to replace with + * + * Return: true if the blob was in fact replaced. + */ +bool drm_property_replace_blob(struct drm_property_blob **blob, + struct drm_property_blob *new_blob) +{ + struct drm_property_blob *old_blob = *blob; + + if (old_blob == new_blob) + return false; + + drm_property_blob_put(old_blob); + if (new_blob) + drm_property_blob_get(new_blob); + *blob = new_blob; + return true; +} +EXPORT_SYMBOL(drm_property_replace_blob); + int drm_mode_getblob_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { |