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staging: vt6656: Power save stop wake_up_count wrap around. 

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: 43c93d9bf5 ("staging: vt6656: implement power saving code.")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/fce47bb5-7ca6-7671-5094-5c6107302f2b@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2020-04-14 11:39:23 +01:00 committed by Greg Kroah-Hartman
parent ed87d33ddb
commit ea81c34864
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/vt6656/usbpipe.c
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@ -207,7 +207,8 @@ static void vnt_int_process_data(struct vnt_private *priv)
priv->wake_up_count = priv->wake_up_count =
priv->hw->conf.listen_interval; 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 */ /* Turn on wake up to listen next beacon */
if (priv->wake_up_count == 1) if (priv->wake_up_count == 1)