pool: fix set diff for unsupported miners.

This fixes a bug related to sending a set difficulty notification for an unsupported miner.
decred · Apr 12, 2021 · 3260b64 · 3260b64
1 parent fbe9f66
commit 3260b64
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/pool/client.go b/pool/client.go
@@ -489,6 +489,12 @@ func (c *Client) handleExtraNonceSubscribeRequest(req *Request, allowed bool) er
 
 // setDifficulty sends the pool client's difficulty ratio.
 func (c *Client) setDifficulty() {
+	// Do not send a difficulty notification if the diff info
+	// for the miner is not set.
+	if c.diffInfo == nil {
+		return
+	}
+
 	c.mtx.RLock()
 	diffRat := c.diffInfo.difficulty
 	c.mtx.RUnlock()