[PATCH -next] mt76: mt7615: Fix assigning negative values to unsigned variable

[Yang Li]

Smatch reports the following:
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:1865
mt7615_mac_adjust_sensitivity() warn: assigning (-110) to unsigned
variable 'def_th'
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:1865
mt7615_mac_adjust_sensitivity() warn: assigning (-98) to unsigned
variable 'def_th'

Reported-by: Abaci Robot <abaci at linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee at linux.alibaba.com>
---
 drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index f035cd880696..283a86052b4f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -1862,7 +1862,7 @@ mt7615_mac_adjust_sensitivity(struct mt7615_phy *phy,
 	struct mt7615_dev *dev = phy->dev;
 	int false_cca = ofdm ? phy->false_cca_ofdm : phy->false_cca_cck;
 	bool ext_phy = phy != &dev->phy;
-	u16 def_th = ofdm ? -98 : -110;
+	s16 def_th = ofdm ? -98 : -110;
 	bool update = false;
 	s8 *sensitivity;
 	int signal;
-- 
2.20.1.7.g153144c