From: Dan Carpenter Date: Sat, 9 Jan 2010 08:41:48 +0000 (+0300) Subject: iwlwifi: silence buffer overflow warning X-Git-Tag: v2.6.33~5^2~1^2~27 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=39825f4dc9f4e409e8ea43ef4df04a924699ad1f;p=profile%2Fcommon%2Fkernel-common.git iwlwifi: silence buffer overflow warning Smatch (and presumably other static checkers) complain that MAX_TID_COUNT is past the end of the array. In the resulting discussion, Zhu Yi pointed out that this value is not used in real life and the assignment was only there to silence a gcc warning. If there were a bug in the surrounding code and the value were used, the WARN_ON(!qc) would print a warning before the crash. Signed-off-by: Dan Carpenter Acked-by: Zhu Yi Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 761aab1..9b4b8b5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -1961,7 +1961,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, struct ieee80211_tx_info *info; struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; u32 status = le32_to_cpu(tx_resp->u.status); - int tid = MAX_TID_COUNT - 1; + int uninitialized_var(tid); int sta_id; int freed; u8 *qc = NULL;