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H A D | client.c | ce068bc7 Thu Mar 18 00:59:59 CDT 2021 Tomas Winkler <tomas.winkler@intel.com> mei: allow map and unmap of client dma buffer only for disconnected client
Allow map and unmap of the client dma buffer only when the client is not connected. The functions return -EPROTO if the client is already connected. This is to fix the race when traffic may start or stop when buffer is not available.
Cc: <stable@vger.kernel.org> #v5.11+ Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210318055959.305627-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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