diff mbox

[v2,26/29] usb: usbtmc: Remove redundant code

Message ID 20180718174356.1820-3-guido@kiener-muenchen.de (mailing list archive)
State New, archived
Headers show

Commit Message

Guido Kiener July 18, 2018, 5:43 p.m. UTC 
Remove redundant code and fix debug messages.

Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Reviewed-by: Steve Bayless <steve_bayless@keysight.com>
---
 drivers/usb/class/usbtmc.c | 25 ++++++++-----------------
 1 file changed, 8 insertions(+), 17 deletions(-)
diff mbox

Patch

diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index ffc89a7d7dfa..dc4f7706b4c2 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -1813,12 +1813,9 @@  static int usbtmc_ioctl_clear_out_halt(struct usbtmc_device_data *data)
 	rv = usb_clear_halt(data->usb_dev,
 			    usb_sndbulkpipe(data->usb_dev, data->bulk_out));
 
-	if (rv < 0) {
-		dev_err(&data->usb_dev->dev, "usb_control_msg returned %d\n",
-			rv);
-		return rv;
-	}
-	return 0;
+	if (rv < 0)
+		dev_err(&data->usb_dev->dev, "%s returned %d\n", __func__, rv);
+	return rv;
 }
 
 static int usbtmc_ioctl_clear_in_halt(struct usbtmc_device_data *data)
@@ -1828,12 +1825,9 @@  static int usbtmc_ioctl_clear_in_halt(struct usbtmc_device_data *data)
 	rv = usb_clear_halt(data->usb_dev,
 			    usb_rcvbulkpipe(data->usb_dev, data->bulk_in));
 
-	if (rv < 0) {
-		dev_err(&data->usb_dev->dev, "usb_control_msg returned %d\n",
-			rv);
-		return rv;
-	}
-	return 0;
+	if (rv < 0)
+		dev_err(&data->usb_dev->dev, "%s returned %d\n", __func__, rv);
+	return rv;
 }
 
 static int usbtmc_ioctl_cancel_io(struct usbtmc_file_data *file_data)
@@ -2337,11 +2331,8 @@  static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		break;
 
 	case USBTMC488_IOCTL_GET_CAPS:
-		retval = copy_to_user((void __user *)arg,
-				&data->usb488_caps,
-				sizeof(data->usb488_caps));
-		if (retval)
-			retval = -EFAULT;
+		retval = put_user(data->usb488_caps,
+				  (unsigned char __user *)arg);
 		break;
 
 	case USBTMC488_IOCTL_READ_STB: