From a1809d38900cff016b2bac9d82766f7420f8eb5d Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Thu, 7 May 2015 15:53:59 +0300 Subject: [PATCH] mei: request autosuspend at the end of write 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 Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/client.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index ce88c2199b2c..7a5a6636f0fd 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1459,12 +1459,18 @@ err: */ 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: -- 2.20.1