diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
index bc68ede64ddb..74f5321611c4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
@@ -423,7 +423,7 @@ static u32 __mt7915_reg_addr(struct mt7915_dev *dev, u32 addr)
 			continue;
 
 		ofs = addr - dev->reg.map[i].phys;
-		if (ofs > dev->reg.map[i].size)
+		if (ofs >= dev->reg.map[i].size)
 			continue;
 
 		return dev->reg.map[i].maps + ofs;