[PATCH v1 1/2] usb: typec: ucsi: Fix reuse of completion structure

[Heikki Krogerus <heikki.krogerus@linux.intel.com>]

The role swapping completion variable is reused, so it needs
to be reinitialised every time. Otherwise it will be marked
as done after the first time it's used and completing
immediately.

Link: https://lore.kernel.org/linux-usb/20220325203959.GA19752@jackp-linux.qualcomm.com/
Fixes: 6df475f804e6 ("usb: typec: ucsi: Start using struct typec_operations")
Reported-and-suggested-by: Jack Pham <quic_jackp@quicinc.com>
Cc: stable@vger.kernel.org
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
 drivers/usb/typec/ucsi/ucsi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index f0c2fa19f3e0f..576cb0e68596f 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -949,6 +949,8 @@ static int ucsi_dr_swap(struct typec_port *port, enum typec_data_role role)
 	     role == TYPEC_HOST))
 		goto out_unlock;
 
+	reinit_completion(&con->complete);
+
 	command = UCSI_SET_UOR | UCSI_CONNECTOR_NUMBER(con->num);
 	command |= UCSI_SET_UOR_ROLE(role);
 	command |= UCSI_SET_UOR_ACCEPT_ROLE_SWAPS;
@@ -985,6 +987,8 @@ static int ucsi_pr_swap(struct typec_port *port, enum typec_role role)
 	if (cur_role == role)
 		goto out_unlock;
 
+	reinit_completion(&con->complete);
+
 	command = UCSI_SET_PDR | UCSI_CONNECTOR_NUMBER(con->num);
 	command |= UCSI_SET_PDR_ROLE(role);
 	command |= UCSI_SET_PDR_ACCEPT_ROLE_SWAPS;
-- 
2.35.1