greybus: es2: always set result value

Make sure to always set the result value for ARPC instead of forcing
every caller to do it in order to avoid compiler warnings.

The ARPC result should still be ignored unless arpc_sync returns
-EREMOTEIO.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c
index 0850b591500fc300b45c35374c2a6c8e53ad0400..c31124d7defc2483e8e39c090cc022002018e6e2 100644 (file)
--- a/drivers/staging/greybus/es2.c
+++ b/drivers/staging/greybus/es2.c
@@ -611,7 +611,7 @@ static int cport_reset(struct gb_host_device *hd, u16 cport_id)
        struct usb_device *udev = es2->usb_dev;
        struct arpc_cport_reset_req req;
        int retval;
-       int result = 0;
+       int result;
 
        switch (cport_id) {
        case GB_SVC_CPORT_ID:
@@ -1184,6 +1184,8 @@ static int arpc_sync(struct es2_ap_dev *es2, u8 type, void *payload,
        unsigned long flags;
        int retval;
 
+       *result = 0;
+
        rpc = arpc_alloc(payload, size, type);
        if (!rpc)
                return -ENOMEM;
@@ -1205,11 +1207,12 @@ static int arpc_sync(struct es2_ap_dev *es2, u8 type, void *payload,
                goto out_arpc_del;
        }
 
-       *result = rpc->resp->result;
-       if (*result)
+       if (rpc->resp->result) {
                retval = -EREMOTEIO;
-       else
+               *result = rpc->resp->result;
+       } else {
                retval = 0;
+       }
 
 out_arpc_del:
        spin_lock_irqsave(&es2->arpc_lock, flags);