Some stack variables (name *ssid and *channel) are only used to define the size of the memory block that needs to be allocated for the request structure in the nl80211_trigger_scan() and nl80211_start_sched_scan() functions. This is unnecessary because the sizes of the actual elements in the structure can be used instead. Signed-off-by: Luciano Coelho <coelho@xxxxxx> --- net/wireless/nl80211.c | 12 ++++-------- 1 files changed, 4 insertions(+), 8 deletions(-) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index d967073..d24f5c1 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3300,8 +3300,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct cfg80211_scan_request *request; - struct cfg80211_ssid *ssid; - struct ieee80211_channel *channel; struct nlattr *attr; struct wiphy *wiphy; int err, tmp, n_ssids = 0, n_channels, i; @@ -3348,8 +3346,8 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) return -EINVAL; request = kzalloc(sizeof(*request) - + sizeof(*ssid) * n_ssids - + sizeof(channel) * n_channels + + sizeof(*request->ssids) * n_ssids + + sizeof(*request->channels) * n_channels + ie_len, GFP_KERNEL); if (!request) return -ENOMEM; @@ -3455,8 +3453,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, struct cfg80211_sched_scan_request *request; struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; - struct cfg80211_ssid *ssid; - struct ieee80211_channel *channel; struct nlattr *attr; struct wiphy *wiphy; int err, tmp, n_ssids = 0, n_channels, i; @@ -3513,8 +3509,8 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, return -EINVAL; request = kzalloc(sizeof(*request) - + sizeof(*ssid) * n_ssids - + sizeof(channel) * n_channels + + sizeof(*request->ssids) * n_ssids + + sizeof(*request->channels) * n_channels + ie_len, GFP_KERNEL); if (!request) return -ENOMEM; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
