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-rw-r--r--drivers/misc/mei/bus.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 0b05aa938..1a173d0af 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -53,6 +53,11 @@ ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
bus = cl->dev;
mutex_lock(&bus->device_lock);
+ if (bus->dev_state != MEI_DEV_ENABLED) {
+ rets = -ENODEV;
+ goto out;
+ }
+
if (!mei_cl_is_connected(cl)) {
rets = -ENODEV;
goto out;
@@ -109,6 +114,10 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
bus = cl->dev;
mutex_lock(&bus->device_lock);
+ if (bus->dev_state != MEI_DEV_ENABLED) {
+ rets = -ENODEV;
+ goto out;
+ }
cb = mei_cl_read_cb(cl, NULL);
if (cb)