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Subject[PATCH 10/15] usb: serial: io_ti: use usb_control_msg_recv() and usb_control_msg_send()
Date
The new usb_control_msg_recv() and usb_control_msg_send() nicely wraps
usb_control_msg() with proper error check. Hence use the wrappers
instead of calling usb_control_msg() directly

Signed-off-by: Himadri Pandya <himadrispandya@gmail.com>
---
drivers/usb/serial/io_ti.c | 28 ++++++++++------------------
1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index c327d4cf7928..ab2370b80b3c 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -260,16 +260,12 @@ static int ti_vread_sync(struct usb_device *dev, __u8 request,
{
int status;

- status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
- (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
- value, index, data, size, 1000);
- if (status < 0)
+ status = usb_control_msg_recv(dev, 0, request, USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE | USB_DIR_IN, value,
+ index, data, size, 1000, GFP_KERNEL);
+ if (status)
return status;
- if (status != size) {
- dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
- __func__, size, status);
- return -ECOMM;
- }
+
return 0;
}

@@ -278,16 +274,12 @@ static int ti_vsend_sync(struct usb_device *dev, u8 request, u16 value,
{
int status;

- status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
- (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
- value, index, data, size, timeout);
- if (status < 0)
+ status = usb_control_msg_send(dev, 0, request, USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE | USB_DIR_OUT, value,
+ index, data, size, timeout, GFP_KERNEL);
+ if (status)
return status;
- if (status != size) {
- dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
- __func__, size, status);
- return -ECOMM;
- }
+
return 0;
}

--
2.17.1
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