From: Johan Hovold <johan@kernel.org>
Date: Tue, 31 Jan 2017 10:51:07 +0000 (+0100)
Subject: USB: serial: ark3116: fix endpoint-check return value
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4481200364ab1d6820a77ed442775a6e4f7c979f;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

USB: serial: ark3116: fix endpoint-check return value

Return -ENODEV rather than -EINVAL on probe errors due to a missing
endpoint.

Also clean up the endpoint sanity check somewhat and use the interface
device for logging a more compact error in case an expected endpoint is
missing.

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

diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 754fc3e41005..d0fcff20ca7e 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -125,17 +125,11 @@ static inline int calc_divisor(int bps)
 static int ark3116_attach(struct usb_serial *serial)
 {
 	/* make sure we have our end-points */
-	if ((serial->num_bulk_in == 0) ||
-	    (serial->num_bulk_out == 0) ||
-	    (serial->num_interrupt_in == 0)) {
-		dev_err(&serial->dev->dev,
-			"%s - missing endpoint - "
-			"bulk in: %d, bulk out: %d, int in %d\n",
-			KBUILD_MODNAME,
-			serial->num_bulk_in,
-			serial->num_bulk_out,
-			serial->num_interrupt_in);
-		return -EINVAL;
+	if (serial->num_bulk_in == 0 ||
+			serial->num_bulk_out == 0 ||
+			serial->num_interrupt_in == 0) {
+		dev_err(&serial->interface->dev, "missing endpoint\n");
+		return -ENODEV;
 	}
 
 	return 0;