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[char-misc-next 01/12] mei: move read cb to complete queue if not connected

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From: Alexander Usyskin <alexander.usyskin@intel.com>

Move read cb to the completion queue if a read finds out that client
is not connected. This expedite user space reader wake on error
condition.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
 drivers/misc/mei/interrupt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 436ecda3935e..412229e7bb7c 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -113,6 +113,7 @@ int mei_cl_irq_read_msg(struct mei_cl *cl,
 
 	if (!mei_cl_is_connected(cl)) {
 		cl_dbg(dev, cl, "not connected\n");
+		list_move_tail(&cb->list, &complete_list->list);
 		cb->status = -ENODEV;
 		goto out;
 	}
-- 
2.7.4

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Thread

[char-misc-next 00/12] mei: rx enhancements Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 02/12] mei: add file pointer to the host client structure Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 09/12] mei: add wrapper for queuing control commands. Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 04/12] mei: amthif: drop mei_clear_lists function Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 05/12] mei: drop redundant krealloc and checks in irq read Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 11/12] mei: amthif: drop mei_amthif_read Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 01/12] mei: move read cb to complete queue if not connected Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 08/12] mei: use consistent naming for TX control flow credits Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 07/12] mei: rx flow control counter Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 12/12] mei: drop unused file transaction states Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 10/12] mei: enqueue consecutive reads Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:00 +0200
  [char-misc-next 06/12] mei: prepare read cb for fixed address clients on the receive path only. Tomas Winkler <tomas.winkler@intel.com> - 2016-07-22 15:10 +0200
  RE: [char-misc-next 00/12] mei: rx enhancements "Winkler, Tomas" <tomas.winkler@intel.com> - 2016-07-25 01:00 +0200
    Re: [char-misc-next 00/12] mei: rx enhancements Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-07-25 01:30 +0200

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