mei: do not override a client writing state when buffering

when we buffer write request we should not switch to
MEI_WRITING since this will override MEI_WRITE_COMPLETE
state of preceding write

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 788f6478b4ab..11a465a25896 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -731,7 +731,9 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
         }
 
         cl->status = 0;
+        cl->writing_state = MEI_WRITING;
         cb->buf_idx += mei_hdr.length;
+
         if (mei_hdr.msg_complete) {
                 if (mei_cl_flow_ctrl_reduce(cl))
                         return -ENODEV;
@@ -783,7 +785,6 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
                 cb->buf_idx = 0;
                 /* unseting complete will enqueue the cb for write */
                 mei_hdr.msg_complete = 0;
-                cl->writing_state = MEI_WRITING;
                 rets = buf->size;
                 goto out;
         }