wl1271: exit ELP mode when setting enabled rates in tx

This bug was being triggered by a call to acx_rate_policies in tx_work
without calling ps_elp_wakeup first.  If we have full PSM enabled, this
happens rather often, immediately after association.

Reported-by: Tuomas Katila <ext-tuomas.2.katila@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Tested-by: Tuomas Katila <ext-tuomas.2.katila@nokia.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c
index 46fafe08f81a..279be5b98d9f 100644
--- a/drivers/net/wireless/wl12xx/wl1271_tx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_tx.c
@@ -261,6 +261,11 @@ void wl1271_tx_work_locked(struct wl1271 *wl)
 
         /* if rates have changed, re-configure the rate policy */
         if (unlikely(sta_rates)) {
+                ret = wl1271_ps_elp_wakeup(wl, false);
+                if (ret < 0)
+                        goto out;
+                woken_up = true;
+
                 wl->rate_set = wl1271_tx_enabled_rates_get(wl, sta_rates);
                 wl1271_acx_rate_policies(wl);
         }