diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2017-10-07 22:37:48 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-08 10:06:30 +0100 |
| commit | 45a012ace954efc08670fd6cd5698facbcdb119c (patch) | |
| tree | b580e4f0293926ce973be784874746c52cbb86c4 | |
| parent | 0e97077574c6e991274b37972d1c0241332610fb (diff) | |
mei: return error on notification request to a disconnected client
[ Upstream commit 7c47d2ca0feca767479329da23523ed798acb854 ]
Request for a notification from a disconnected client will be ignored
silently by the FW but the caller should know that the operation hasn't
succeeded.
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/mei/client.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 2ff39fbc70d1..df268365e04e 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1300,6 +1300,9 @@ int mei_cl_notify_request(struct mei_cl *cl, struct file *file, u8 request) return -EOPNOTSUPP; } + if (!mei_cl_is_connected(cl)) + return -ENODEV; + rets = pm_runtime_get(dev->dev); if (rets < 0 && rets != -EINPROGRESS) { pm_runtime_put_noidle(dev->dev); |