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mei: request autosuspend at the end of write

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On longer non-blocking write might not complete at the end of
autosuspend expiration, therefore we request autosuspend
again on the write completion.

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 2015-05-07 15:53:59 +03:00 committed by Greg Kroah-Hartman
parent b8b7303579
commit a1809d3890
1 changed files with 7 additions and 1 deletions
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8
drivers/misc/mei/client.c
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@ -1459,12 +1459,18 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
*/
void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb)
{
struct mei_device *dev = cl->dev;
switch (cb->fop_type) {
case MEI_FOP_WRITE:
mei_io_cb_free(cb);
cl->writing_state = MEI_WRITE_COMPLETE;
if (waitqueue_active(&cl->tx_wait))
if (waitqueue_active(&cl->tx_wait)) {
wake_up_interruptible(&cl->tx_wait);
} else {
pm_runtime_mark_last_busy(dev->dev);
pm_request_autosuspend(dev->dev);
}
break;
case MEI_FOP_READ: