[PATCH] greybus: es2: drop short control-transfer checks

Johan Hovold
2021-01-18T14:49:24Z

There's no need to check for short USB control transfers when sending
data using so remove the redundant sanity checks.

Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/greybus/es2.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/greybus/es2.c b/drivers/greybus/es2.c
index 1df6ab5d339d..48ad154df3a7 100644
--- a/drivers/greybus/es2.c
+++ b/drivers/greybus/es2.c
@@ -567,12 +567,9 @@ static int cport_enable(struct gb_host_device *hd, u16 cport_id,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_INTERFACE, cport_id, 0,
req, sizeof(*req), ES2_USB_CTRL_TIMEOUT);
- if (ret != sizeof(*req)) {
+ if (ret < 0) {
dev_err(&udev->dev, "failed to set cport flags for port %d\n",
cport_id);
- if (ret >= 0)
- ret = -EIO;
-
goto out;
}

@@ -961,12 +958,10 @@ static int arpc_send(struct es2_ap_dev *es2, struct arpc *rpc, int timeout)
0, 0,
rpc->req, le16_to_cpu(rpc->req->size),
ES2_USB_CTRL_TIMEOUT);
- if (retval != le16_to_cpu(rpc->req->size)) {
+ if (retval < 0) {
dev_err(&udev->dev,
"failed to send ARPC request %d: %d\n",
rpc->req->type, retval);
- if (retval > 0)
- retval = -EIO;
return retval;
}

--
2.26.2