diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2017-09-21 14:35:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-18 09:38:27 +0200 |
| commit | c55e7d0a4e3f7ff9781141b48a0d9ddc0b6917cf (patch) | |
| tree | fce68ee73f7fd5533a7ab266b6ec91242f3be2ff /fs | |
| parent | 344d82b632e77a9c52017c8862c1d3f2cd643c8d (diff) | |
dmaengine: ti-dma-crossbar: Fix possible race condition with dma_inuse
commit 2ccb4837c938357233a0b8818e3ca3e58242c952 upstream.
When looking for unused xbar_out lane we should also protect the set_bit()
call with the same mutex to protect against concurrent threads picking the
same ID.
Fixes: ec9bfa1e1a796 ("dmaengine: ti-dma-crossbar: dra7: Use bitops instead of idr")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions