From eb2ec0fb3c2fe85d42b2d5131e526daa0e298b9e Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Fri, 16 Apr 2010 15:46:41 +0200 Subject: [PATCH] iwlwifi: check scan request ie_len In mac80211 we always check both scan_req->ie and scan_req->ie_len against zero before usage, in iwlwifi we should do the same. Remove not needed "left -= ie_len" while at it. Signed-off-by: Stanislaw Gruszka Acked-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-scan.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index d817c9c184a5..83e62917e0bf 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -644,10 +644,10 @@ u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame, if (WARN_ON(left < ie_len)) return len; - if (ies) + if (ies && ie_len) { memcpy(pos, ies, ie_len); - len += ie_len; - left -= ie_len; + len += ie_len; + } return (u16)len; } -- 2.20.1