From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
This patch has been added to the 4.1 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 6238299774377b12c3e24507b100b2687eb5ea32 ]
To make the file more organize move mei client driver api
to the start of the file and add Kdoc.
There are no functional changes in this patch.
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
drivers/misc/mei/bus.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 4cf38c3..883ba74fb 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -238,6 +238,11 @@ static ssize_t ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
dev = cl->dev;
mutex_lock(&dev->device_lock);
+ if (dev->dev_state != MEI_DEV_ENABLED) {
+ rets = -ENODEV;
+ goto out;
+ }
+
if (!mei_cl_is_connected(cl)) {
rets = -ENODEV;
goto out;
@@ -287,6 +292,10 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
dev = cl->dev;
mutex_lock(&dev->device_lock);
+ if (dev->dev_state != MEI_DEV_ENABLED) {
+ rets = -ENODEV;
+ goto out;
+ }
cb = mei_cl_read_cb(cl, NULL);
if (cb)
--
2.5.0
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html