greybus: move timeout out of gb_operation_insert()

Currently, gb_operation_insert() arranges to time out a request if
it takes too long.  Move this out of that function and into
gb_operation_request_send(), so we know it's getting set up after
the request has actually be sent.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/greybus/operation.c b/drivers/staging/greybus/operation.c
index beac3536ca687bb073e169287e99ba54a5cbfebb..5f3e52d8d485a3ef8109bc19956bf7d33cb4ef4e 100644 (file)
--- a/drivers/staging/greybus/operation.c
+++ b/drivers/staging/greybus/operation.c
@@ -64,7 +64,6 @@ static void gb_operation_insert(struct gb_operation *operation)
        struct rb_node **link = &root->rb_node;
        struct rb_node *above = NULL;
        struct gb_operation_msg_hdr *header;
-       unsigned long timeout;
 
        /* Assign the operation's id, and store it in the header of
         * the request message header.
@@ -89,10 +88,6 @@ static void gb_operation_insert(struct gb_operation *operation)
        rb_link_node(node, above, link);
        rb_insert_color(node, root);
        spin_unlock_irq(&gb_operations_lock);
-
-       /* We impose a time limit for requests to complete.  */
-       timeout = msecs_to_jiffies(OPERATION_TIMEOUT_DEFAULT);
-       schedule_delayed_work(&operation->timeout_work, timeout);
 }
 
 static void gb_operation_remove(struct gb_operation *operation)
@@ -397,6 +392,7 @@ void gb_operation_destroy(struct gb_operation *operation)
 int gb_operation_request_send(struct gb_operation *operation,
                                gb_operation_callback callback)
 {
+       unsigned long timeout;
        int ret;
 
        if (operation->connection->state != GB_CONNECTION_STATE_ENABLED)
@@ -413,6 +409,10 @@ int gb_operation_request_send(struct gb_operation *operation,
        ret = greybus_submit_gbuf(operation->request, GFP_KERNEL);
        if (ret)
                return ret;
+
+       /* We impose a time limit for requests to complete.  */
+       timeout = msecs_to_jiffies(OPERATION_TIMEOUT_DEFAULT);
+       schedule_delayed_work(&operation->timeout_work, timeout);
        if (!callback)
                ret = gb_operation_wait(operation);