diff options
Diffstat (limited to 'drivers/gpu/drm/drm_platform.c')
| -rw-r--r-- | drivers/gpu/drm/drm_platform.c | 38 |
1 files changed, 9 insertions, 29 deletions
diff --git a/drivers/gpu/drm/drm_platform.c b/drivers/gpu/drm/drm_platform.c index d5b76f148c12..5314c9d5fef4 100644 --- a/drivers/gpu/drm/drm_platform.c +++ b/drivers/gpu/drm/drm_platform.c @@ -68,42 +68,23 @@ err_free: return ret; } -static int drm_platform_set_busid(struct drm_device *dev, struct drm_master *master) +int drm_platform_set_busid(struct drm_device *dev, struct drm_master *master) { - int len, ret, id; - - master->unique_len = 13 + strlen(dev->platformdev->name); - master->unique_size = master->unique_len; - master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL); - - if (master->unique == NULL) - return -ENOMEM; + int id; id = dev->platformdev->id; - - /* if only a single instance of the platform device, id will be - * set to -1.. use 0 instead to avoid a funny looking bus-id: - */ - if (id == -1) + if (id < 0) id = 0; - len = snprintf(master->unique, master->unique_len, - "platform:%s:%02d", dev->platformdev->name, id); - - if (len > master->unique_len) { - DRM_ERROR("Unique buffer overflowed\n"); - ret = -EINVAL; - goto err; - } + master->unique = kasprintf(GFP_KERNEL, "platform:%s:%02d", + dev->platformdev->name, id); + if (!master->unique) + return -ENOMEM; + master->unique_len = strlen(master->unique); return 0; -err: - return ret; } - -static struct drm_bus drm_platform_bus = { - .set_busid = drm_platform_set_busid, -}; +EXPORT_SYMBOL(drm_platform_set_busid); /** * drm_platform_init - Register a platform device with the DRM subsystem @@ -120,7 +101,6 @@ int drm_platform_init(struct drm_driver *driver, struct platform_device *platfor { DRM_DEBUG("\n"); - driver->bus = &drm_platform_bus; return drm_get_platform_dev(platform_device, driver); } EXPORT_SYMBOL(drm_platform_init); |