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SubjectRe: [PATCH v2 1/1] HID: Logitech K290: Add driver for the Logitech K290 USB keyboard
Hi Florent,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on hid/for-next]
[also build test WARNING on v4.16-rc4 next-20180305]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Florent-Flament/Logitech-K290-Add-driver-for-the-Logitech-K290-USB-keyboard/20180305-153311
base: https://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git for-next
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> drivers/hid/hid-logitech-k290.c:54:46: sparse: Using plain integer as NULL pointer

vim +54 drivers/hid/hid-logitech-k290.c

45
46 static void k290_set_function(struct usb_device *dev, uint16_t function_mode)
47 {
48 int ret;
49
50 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
51 K290_SET_FUNCTION_CMD,
52 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
53 K290_SET_FUNCTION_VAL,
> 54 function_mode, 0, 0, USB_CTRL_SET_TIMEOUT);
55
56 if (ret < 0)
57 dev_err(&dev->dev,
58 "Failed to setup K290 function key, error %d\n", ret);
59 }
60

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation

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