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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2018-11-22 12:43:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-27 16:08:01 +0100 |
| commit | 411a50501f91da8cf82cb7a8f29a3c5487f4c47f (patch) | |
| tree | 4f2e24584470e50790ab3c43e385333a7b8f04b4 /drivers/usb/class/cdc-acm.c | |
| parent | 37944cba362d17a3d8ff1180f9fd2047299e9f57 (diff) | |
Revert "media: videobuf2-core: don't call memop 'finish' when queueing"
This reverts commit 46431d9c28f6859f8e568ac7db92137f1da31100.
This commit fixes a bug in upstream commit a136f59c0a1f ("vb2: Move
buffer cache synchronisation to prepare from queue") which isn't
present in 4.4.
So as a result you get an UNBALANCED message in the kernel log if
this patch is applied:
vb2: counters for queue ffffffc0f3687478, buffer 3: UNBALANCED!
vb2: buf_init: 1 buf_cleanup: 1 buf_prepare: 805 buf_finish: 805
vb2: buf_queue: 806 buf_done: 806
vb2: alloc: 0 put: 0 prepare: 806 finish: 805 mmap: 0
vb2: get_userptr: 0 put_userptr: 0
vb2: attach_dmabuf: 1 detach_dmabuf: 1 map_dmabuf: 805 unmap_dmabuf: 805
vb2: get_dmabuf: 0 num_users: 1609 vaddr: 0 cookie: 805
Reverting this patch solves this regression.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
0 files changed, 0 insertions, 0 deletions