diff options
| author | Guido Kiener <guido@kiener-muenchen.de> | 2018-09-12 10:51:09 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-20 13:04:03 +0200 |
| commit | fd784cad03530d82d31c41759a46dd2ddfbf8f6f (patch) | |
| tree | f141c6ee615800e2b766d62668977fcca50f9d74 /drivers/usb/class/usbtmc.c | |
| parent | usb: usbtmc: Update ioctl-number.txt (diff) | |
| download | linux-fd784cad03530d82d31c41759a46dd2ddfbf8f6f.tar.xz linux-fd784cad03530d82d31c41759a46dd2ddfbf8f6f.zip | |
usb: usbtmc: Remove redundant code
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class/usbtmc.c')
| -rw-r--r-- | drivers/usb/class/usbtmc.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 72867a97ec00..5b6cdb1237ab 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -1745,12 +1745,9 @@ 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) @@ -1760,12 +1757,9 @@ 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) @@ -2189,11 +2183,8 @@ 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: |