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cfg80211: prohibit zero keepalive interval

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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 <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2013-02-26 13:56:40 +01:00
parent d339d5ca8e
commit 723d568aa5
1 changed files with 2 additions and 1 deletions
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3
net/wireless/nl80211.c
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@ -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]);