Commit 10e8cb7e authored by Daniel Stone's avatar Daniel Stone Committed by Daniel Vetter
Browse files

drm: Return error value from blob creation



Change drm_property_create_blob to return an ERR_PTR-encoded error on
failure, so we can pass the failure reason down.

Signed-off-by: default avatarDaniel Stone <daniels@collabora.com>
Cc: Maarten Lankhorst <maarten.lankhorst@intel.com>
Tested-by: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 99531d9b
......@@ -4154,6 +4154,10 @@ done:
* @dev: DRM device to create property for
* @length: Length to allocate for blob data
* @data: If specified, copies data into blob
*
* Returns:
* New blob property with a single reference on success, or an ERR_PTR
* value on failure.
*/
struct drm_property_blob *
drm_property_create_blob(struct drm_device *dev, size_t length,
......@@ -4163,11 +4167,11 @@ drm_property_create_blob(struct drm_device *dev, size_t length,
int ret;
if (!length)
return NULL;
return ERR_PTR(-EINVAL);
blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
if (!blob)
return NULL;
return ERR_PTR(-ENOMEM);
blob->length = length;
blob->dev = dev;
......@@ -4181,7 +4185,7 @@ drm_property_create_blob(struct drm_device *dev, size_t length,
if (ret) {
kfree(blob);
mutex_unlock(&dev->mode_config.blob_lock);
return NULL;
return ERR_PTR(-EINVAL);
}
kref_init(&blob->refcount);
......@@ -4370,8 +4374,8 @@ static int drm_property_replace_global_blob(struct drm_device *dev,
if (length && data) {
new_blob = drm_property_create_blob(dev, length, data);
if (!new_blob)
return -EINVAL;
if (IS_ERR(new_blob))
return PTR_ERR(new_blob);
}
/* This does not need to be synchronised with blob_lock, as the
......
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