From: Heikki Krogerus heikki.krogerus@linux.intel.com
commit e25adcca917d7e4cdc1dc6444d0692ffda7594bf upstream.
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.qualcom... Fixes: 6df475f804e6 ("usb: typec: ucsi: Start using struct typec_operations") Cc: stable@vger.kernel.org Reported-and-suggested-by: Jack Pham quic_jackp@quicinc.com Signed-off-by: Heikki Krogerus heikki.krogerus@linux.intel.com Link: https://lore.kernel.org/r/20220405134824.68067-2-heikki.krogerus@linux.intel... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/typec/ucsi/ucsi.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -928,6 +928,8 @@ static int ucsi_dr_swap(struct typec_por 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; @@ -964,6 +966,8 @@ static int ucsi_pr_swap(struct typec_por 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;