From: Johan Hovold <johan@kernel.org>
Date: Mon, 18 Jan 2021 11:14:26 +0000 (+0100)
Subject: USB: serial: f81534: drop short control-transfer check
X-Git-Tag: v5.15~1778^2~10^2~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cfb0fde7a7fab4509fdb4f7ab72d5fd7157c0aa0;p=platform%2Fkernel%2Flinux-starfive.git

USB: serial: f81534: drop short control-transfer check

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

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
---

diff --git a/drivers/usb/serial/f81534.c b/drivers/usb/serial/f81534.c
index 5661fd03e545..dd7e55e822ef 100644
--- a/drivers/usb/serial/f81534.c
+++ b/drivers/usb/serial/f81534.c
@@ -235,11 +235,9 @@ static int f81534_set_register(struct usb_serial *serial, u16 reg, u8 data)
 					 USB_TYPE_VENDOR | USB_DIR_OUT,
 					 reg, 0, tmp, sizeof(u8),
 					 F81534_USB_TIMEOUT);
-		if (status > 0) {
+		if (status == sizeof(u8)) {
 			status = 0;
 			break;
-		} else if (status == 0) {
-			status = -EIO;
 		}
 	}