[char-misc-next 4/8] mei: fix return value on disconnection

From: Tomas Winkler
Date: Thu Jun 16 2016 - 10:59:00 EST


Correct errno on client disconnection is -ENODEV not -EBUSY

Cc: <stable@xxxxxxxxxxxxxxx> #4.3+
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
---
drivers/misc/mei/bus.c | 2 +-
drivers/misc/mei/main.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 63411ddfb83d..9c404dc8eada 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -143,7 +143,7 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
mutex_lock(&bus->device_lock);

if (!mei_cl_is_connected(cl)) {
- rets = -EBUSY;
+ rets = -ENODEV;
goto out;
}
}
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 3326bde7fba1..d62e89c80beb 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -203,7 +203,7 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,

mutex_lock(&dev->device_lock);
if (!mei_cl_is_connected(cl)) {
- rets = -EBUSY;
+ rets = -ENODEV;
goto out;
}
}
--
2.5.5