From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Sun, 7 Feb 2016 21:35:32 +0000 (+0200)
Subject: mei: bus: move driver api functions at the start of the file
X-Git-Tag: v4.1.22~129
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=79b768dec5d354aeb143f51db11e0cbb758176fb;p=platform%2Fkernel%2Flinux-exynos.git

mei: bus: move driver api functions at the start of the file

[ 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@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
---

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)