From 723d568aa585028a145c79a744dba2e018815873 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 26 Feb 2013 13:56:40 +0100 Subject: [PATCH] cfg80211: prohibit zero keepalive interval It's not useful to specify a 0 keepalive interval, this would send too much data. Prohibit this to also avoid device issues. Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 3acde3f88d3a..a8bd453d22b9 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -7636,7 +7636,8 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, return -EINVAL; if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) > - rdev->wiphy.wowlan.tcp->data_interval_max) + rdev->wiphy.wowlan.tcp->data_interval_max || + nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0) return -EINVAL; wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); -- 2.20.1