Messages in this thread Patch in this message | | | From | Tomas Winkler <> | Subject | [char-misc-next 13/27] mei: amthif: interrupt reader on link reset | Date | Sun, 7 Feb 2016 23:35:29 +0200 |
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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
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