[PATCH -next] greybus: es2: fix error return code in ap_probe()

[Wei Yongjun]

From: Wei Yongjun <weiyongjun1@xxxxxxxxxx>

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@xxxxxxxxxx>
---
 drivers/staging/greybus/es2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c
index 8eabc71..a97fccf 100644
--- a/drivers/staging/greybus/es2.c
+++ b/drivers/staging/greybus/es2.c
@@ -1547,7 +1547,8 @@ 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);