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 <alan@signal11.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index 42e6dee..66bb4ce 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -344,6 +344,8 @@
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 @@
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,