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authorMalcolm Priestley <tvboxspy@gmail.com>2020-04-14 11:39:23 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-04-16 13:45:15 +0200
commitea81c3486442f4643fc9825a2bb1b430b829bccd (patch)
tree6e7b506851193baeb1cab5abf6776ead86538a4d /drivers/staging
parented87d33ddbcd9a1c3b5ae87995da34e6f51a862c (diff)
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: 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>
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/vt6656/usbpipe.c3
1 files changed, 2 insertions, 1 deletions
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)