diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-09-29 10:52:34 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-10-10 11:19:26 +0300 |
| commit | 64e79426c2041b931c053a11743277a4f7f279c4 (patch) | |
| tree | c50447f9af5416fe6a8e9f1dd3a2839b84cf1331 /drivers/net/wireless/realtek/rtlwifi/core.c | |
| parent | fc09785de0a364427a5df63d703bae9a306ed116 (diff) | |
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: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/core.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c index c53cbf3d52bd..294a6b43d1bc 100644 --- a/drivers/net/wireless/realtek/rtlwifi/core.c +++ b/drivers/net/wireless/realtek/rtlwifi/core.c @@ -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; |