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authorJens Axboe <jaxboe@fusionio.com>2011-05-20 20:33:15 +0200
committerJens Axboe <jaxboe@fusionio.com>2011-05-20 20:33:15 +0200
commit698567f3fa790fea37509a54dea855302dd88331 (patch)
tree7a1df976a0eb12cab03e82c18809a30d5482fee4 /drivers/media/media-entity.c
parentd70d0711edd8076ec2ce0ed109106e2df950681b (diff)
parent61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf (diff)
Merge commit 'v2.6.39' into for-2.6.40/core
Since for-2.6.40/core was forked off the 2.6.39 devel tree, we've had churn in the core area that makes it difficult to handle patches for eg cfq or blk-throttle. Instead of requiring that they be based in older versions with bugs that have been fixed later in the rc cycle, merge in 2.6.39 final. Also fixes up conflicts in the below files. Conflicts: drivers/block/paride/pcd.c drivers/cdrom/viocd.c drivers/ide/ide-cd.c Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/media/media-entity.c')
-rw-r--r--drivers/media/media-entity.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 23640ed44d8..056138f63c7 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -378,7 +378,6 @@ EXPORT_SYMBOL_GPL(media_entity_create_link);
static int __media_entity_setup_link_notify(struct media_link *link, u32 flags)
{
- const u32 mask = MEDIA_LNK_FL_ENABLED;
int ret;
/* Notify both entities. */
@@ -395,7 +394,7 @@ static int __media_entity_setup_link_notify(struct media_link *link, u32 flags)
return ret;
}
- link->flags = (link->flags & ~mask) | (flags & mask);
+ link->flags = flags;
link->reverse->flags = link->flags;
return 0;
@@ -417,6 +416,7 @@ static int __media_entity_setup_link_notify(struct media_link *link, u32 flags)
*/
int __media_entity_setup_link(struct media_link *link, u32 flags)
{
+ const u32 mask = MEDIA_LNK_FL_ENABLED;
struct media_device *mdev;
struct media_entity *source, *sink;
int ret = -EBUSY;
@@ -424,6 +424,10 @@ int __media_entity_setup_link(struct media_link *link, u32 flags)
if (link == NULL)
return -EINVAL;
+ /* The non-modifiable link flags must not be modified. */
+ if ((link->flags & ~mask) != (flags & ~mask))
+ return -EINVAL;
+
if (link->flags & MEDIA_LNK_FL_IMMUTABLE)
return link->flags == flags ? 0 : -EINVAL;