libertas: before sleeping, check for a command result

If we don't check for a command response early, but rather sleep,
then we might sleep despite an already-received command response.
This will lead to a command-timeout.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 0cd4702..faa4db1 100644 (file)
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -722,14 +722,14 @@ static int lbs_thread(void *data)
                        shouldsleep = 1;        /* Something is en route to the device already */
                else if (priv->tx_pending_len > 0)
                        shouldsleep = 0;        /* We've a packet to send */
+               else if (priv->resp_len[priv->resp_idx])
+                       shouldsleep = 0;        /* We have a command response */
                else if (priv->cur_cmd)
                        shouldsleep = 1;        /* Can't send a command; one already running */
                else if (!list_empty(&priv->cmdpendingq))
                        shouldsleep = 0;        /* We have a command to send */
                else if (__kfifo_len(priv->event_fifo))
                        shouldsleep = 0;        /* We have an event to process */
-               else if (priv->resp_len[priv->resp_idx])
-                       shouldsleep = 0;        /* We have a command response */
                else
                        shouldsleep = 1;        /* No command */