From: Tomas Winkler <tomas.winkler@intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alexander Usyskin <alexander.usyskin@intel.com>,
linux-kernel@vger.kernel.org,
Tomas Winkler <tomas.winkler@intel.com>
Subject: [char-misc-next 13/27] mei: amthif: interrupt reader on link reset
Date: Sun, 7 Feb 2016 23:35:29 +0200 [thread overview]
Message-ID: <1454880943-12653-14-git-send-email-tomas.winkler@intel.com> (raw)
In-Reply-To: <1454880943-12653-1-git-send-email-tomas.winkler@intel.com>
From: Alexander Usyskin <alexander.usyskin@intel.com>
In case of link reset all waiting readers should be interrupted.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/amthif.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index b98eac389782..ca2efc3602df 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -122,7 +122,8 @@ int mei_amthif_read(struct mei_device *dev, struct file *file,
mutex_unlock(&dev->device_lock);
wait_ret = wait_event_interruptible(cl->rx_wait,
- !list_empty(&cl->rd_completed));
+ !list_empty(&cl->rd_completed) ||
+ !mei_cl_is_connected(cl));
/* Locking again the Mutex */
mutex_lock(&dev->device_lock);
@@ -130,6 +131,11 @@ int mei_amthif_read(struct mei_device *dev, struct file *file,
if (wait_ret)
return -ERESTARTSYS;
+ if (!mei_cl_is_connected(cl)) {
+ rets = -EBUSY;
+ goto out;
+ }
+
cb = mei_cl_read_cb(cl, file);
}
--
2.4.3
next prev parent reply other threads:[~2016-02-07 21:42 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-07 21:35 [char-misc-next 00/27] mei: fixes, improvements, and cleanups Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 01/27] mei: debugfs: adjust active clients print buffer Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 02/27] mei: debugfs: allow hbm features list dump in earlier stages Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 03/27] mei: fix possible integer overflow issue Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 04/27] mei: call stop on failed char device register Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 05/27] mei: amthif: don't copy from an empty buffer Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 06/27] mei: amthif: don't drop read packets on timeout Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 07/27] mei: constify struct file pointer Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 08/27] mei: rename variable names 'file_object' to fp Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 09/27] mei: amthif: allow only one request at a time Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 10/27] mei: amthif: replace amthif_rd_complete_list with rd_completed Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 11/27] mei: amthif: drop parameter validation from mei_amthif_write Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 12/27] mei: amthif: use rx_wait queue also for amthif client Tomas Winkler
2016-02-07 21:35 ` Tomas Winkler [this message]
2016-02-07 21:35 ` [char-misc-next 14/27] mei: bus: fix RX event scheduling Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 15/27] mei: bus: fix notification event delivery Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 16/27] mei: bus: check if the device is enabled before data transfer Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 17/27] mei: drop superfluous closing bracket from write traces Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 18/27] mei: wake blocked write on link reset Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 19/27] mei: clean write queues and wake waiters on disconnect Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 20/27] mei: discard replies from unconnected fixed address clients Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 21/27] mei: fill file pointer in read cb for fixed address client Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 22/27] mei: fixed address clients for the new platforms Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 23/27] mei: hbm: warn about fw-initiated disconnect Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 24/27] mei: drop reserved host client ids Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 25/27] mei: bus: run rescan on me_clients list change Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 26/27] mei: hbm: send immediate reply flag in enum request Tomas Winkler
2016-02-07 21:35 ` [char-misc-next 27/27] mei: split amthif client init from end of clients enumeration Tomas Winkler
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