diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2016-02-08 00:35:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-08 01:47:20 +0300 |
| commit | b74d883138911b110cf8f5b7b94790e16bb56795 (patch) | |
| tree | 525149dee4943c11962e90d6348a9d3c43a4c912 /drivers/misc/mei | |
| parent | 4bddf56fc93c6ad7a451f15a69e3d89d49db0747 (diff) | |
| download | linux-b74d883138911b110cf8f5b7b94790e16bb56795.tar.xz | |
mei: amthif: interrupt reader on link reset
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei')
| -rw-r--r-- | drivers/misc/mei/amthif.c | 8 |
1 files changed, 7 insertions, 1 deletions
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); } |