From: Alan Ott Date: Sun, 6 Oct 2013 03:52:22 +0000 (-0400) Subject: mrf24j40: Move INIT_COMPLETION() to before packet transmission X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9757f1d2e0b4e7ff59e76c2fadbf819e18f3f884;p=linux-beck.git mrf24j40: Move INIT_COMPLETION() to before packet transmission This avoids a race condition where complete(tx_complete) could be called before tx_complete is initialized. Signed-off-by: Alan Ott Signed-off-by: David S. Miller --- diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c index 42e6deee6db5..66bb4ceaabe8 100644 --- a/drivers/net/ieee802154/mrf24j40.c +++ b/drivers/net/ieee802154/mrf24j40.c @@ -344,6 +344,8 @@ static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb) if (ret) goto err; + INIT_COMPLETION(devrec->tx_complete); + /* Set TXNTRIG bit of TXNCON to send packet */ ret = read_short_reg(devrec, REG_TXNCON, &val); if (ret) @@ -354,8 +356,6 @@ static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb) val |= 0x4; write_short_reg(devrec, REG_TXNCON, val); - INIT_COMPLETION(devrec->tx_complete); - /* Wait for the device to send the TX complete interrupt. */ ret = wait_for_completion_interruptible_timeout( &devrec->tx_complete,