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Alexander Usyskin authored
If empty message come from FW (buf_idx == 0) then the current code will still try to copy data from not filled buffer to the user-space, instead the code should behave the same as when end of a message has been reached, clean resources and return 0 Signed-off-by:
Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by:
Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5ba0bf47