tree 572a18c64d24dc54767a201ebc9c2377bcd02ecc
parent d6407e10bcf540a67afbeca83e60a4323cba8b33
author Alexander Usyskin <alexander.usyskin@intel.com> 1486507305 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1489297306 +0100

mei: remove support for broken parallel read

commit cb97fbbcac15982406e0c74cd5512a8b6fcf10b3 upstream.

Parallel reads from multiple threads on a file descriptor
are not well defined and racy. It is safer to return to original
behavior and simply fail the additional read.
The solution is to remove request for next read credit.

Fixes: ff1586a7ea57 ("mei: enqueue consecutive reads")
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>