conf.listen_interval can sometimes be zero causing wake_up_count
to wrap around up to many beacons too late causing
CTRL-EVENT-BEACON-LOSS as in.
wpa_supplicant[795]: message repeated 45 times: [..CTRL-EVENT-BEACON-LOSS ]
Fixes: 43c93d9bf5e2 ("staging: vt6656: implement power saving code.")
Cc: stable <sta...@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvbox...@gmail.com>
---
drivers/staging/vt6656/usbpipe.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index eae211e5860f..91b62c3dff7b 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -207,7 +207,8 @@ static void vnt_int_process_data(struct vnt_private *priv)
priv->wake_up_count =
priv->hw->conf.listen_interval;
- --priv->wake_up_count;
+ if (priv->wake_up_count)
+ --priv->wake_up_count;
/* Turn on wake up to listen next beacon */
if (priv->wake_up_count == 1)
--
2.25.1
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