[PATCH] usb: typec: tcpm: turn tcpm_ams_finish into void function

[Yang Li]

This function always return '0' and no callers use the return value.
So make it a void function.

This eliminates the following coccicheck warning:
./drivers/usb/typec/tcpm/tcpm.c:778:5-8: Unneeded variable: "ret".
Return "0" on line 794

Reported-by: Abaci Robot <ab...@linux.alibaba.com>
Signed-off-by: Yang Li <yang....@linux.alibaba.com>
---
 drivers/usb/typec/tcpm/tcpm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index be0b646..6ee984e 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -773,10 +773,8 @@ static enum typec_cc_status tcpm_rp_cc(struct tcpm_port 
*port)
        return TYPEC_CC_RP_DEF;
 }
 
-static int tcpm_ams_finish(struct tcpm_port *port)
+static void tcpm_ams_finish(struct tcpm_port *port)
 {
-       int ret = 0;
-
        tcpm_log(port, "AMS %s finished", tcpm_ams_str[port->ams]);
 
        if (port->pd_capable && port->pwr_role == TYPEC_SOURCE) {
@@ -791,7 +789,7 @@ static int tcpm_ams_finish(struct tcpm_port *port)
        port->in_ams = false;
        port->ams = NONE_AMS;
 
-       return ret;
+       return;
 }
 
 static int tcpm_pd_transmit(struct tcpm_port *port,
-- 
1.8.3.1