greybus: es2: fix error return code in ap_probe()

Fix to return a negative error code from the es2_arpc_in_enable() error
handling case instead of 0, as done elsewhere in this function.

Fixes: 9d9d3777a9db ("greybus: es2: Add a new bulk in endpoint for APBridgeA RPC")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c
index 071bb1c..baab460 100644 (file)
--- a/drivers/staging/greybus/es2.c
+++ b/drivers/staging/greybus/es2.c
@@ -1548,7 +1548,8 @@ static int ap_probe(struct usb_interface *interface,
        INIT_LIST_HEAD(&es2->arpcs);
        spin_lock_init(&es2->arpc_lock);
 
-       if (es2_arpc_in_enable(es2))
+       retval = es2_arpc_in_enable(es2);
+       if (retval)
                goto error;
 
        retval = gb_hd_add(hd);