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Commit 64e79426 authored by Dan Carpenter's avatar Dan Carpenter Committed by Kalle Valo
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rtlwifi: silence underflow warning 



My static checker complains that we have an upper bound but no lower
bound.  I suspect neither are really required but it doesn't hurt to add
a check for negatives.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent fc09785d

drivers/net/wireless/realtek/rtlwifi/core.c

+2 −1
Original line number Diff line number Diff line
@@ -453,7 +453,8 @@ static void _rtl_add_wowlan_patterns(struct ieee80211_hw *hw, 
	for (i = 0; i < wow->n_patterns; i++) {

		memset(&rtl_pattern, 0, sizeof(struct rtl_wow_pattern));

		memset(mask, 0, MAX_WOL_BIT_MASK_SIZE);

		if (patterns[i].pattern_len > MAX_WOL_PATTERN_SIZE) {

		if (patterns[i].pattern_len < 0 ||

		    patterns[i].pattern_len > MAX_WOL_PATTERN_SIZE) {

			RT_TRACE(rtlpriv, COMP_POWER, DBG_WARNING,

				 "Pattern[%d] is too long\n", i);

			continue;