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staging: vt6656: Power save stop wake_up_count wrap around.
author
Malcolm Priestley
<tvboxspy@gmail.com>
Tue, 14 Apr 2020 10:39:23 +0000
(11:39 +0100)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Sat, 2 May 2020 15:23:13 +0000
(17:23 +0200)
commit
ea81c3486442f4643fc9825a2bb1b430b829bccd
upstream.
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 <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>
drivers/staging/vt6656/int.c
patch
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diff --git
a/drivers/staging/vt6656/int.c
b/drivers/staging/vt6656/int.c
index
b554e88
..
f7ed091
100644
(file)
--- a/
drivers/staging/vt6656/int.c
+++ b/
drivers/staging/vt6656/int.c
@@
-153,7
+153,8
@@
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)