evie/android_kernel_oneplus_msm8998
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mei: reset flow control on the last client disconnection

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The FW resets the flow control for single buffer clients when the last
host client disconnects, also the driver has to follow this policy and
zero the flow control counter in such case.

Cc: <stable@vger.kernel.org> #4.1
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>
This commit is contained in:
Alexander Usyskin 2015-06-13 21:18:40 +03:00 • committed by Greg Kroah-Hartman
parent 5069288bd4
commit c241e9b1d9
1 changed files with 3 additions and 0 deletions
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3
drivers/misc/mei/client.c
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@ -755,6 +755,9 @@ void mei_cl_set_disconnected(struct mei_cl *cl)
if (!WARN_ON(cl->me_cl->connect_count == 0))
cl->me_cl->connect_count--;
if (cl->me_cl->connect_count == 0)
cl->me_cl->mei_flow_ctrl_creds = 0;
mei_me_cl_put(cl->me_cl);
cl->me_cl = NULL;
}