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Date:   Mon, 6 Jul 2020 04:30:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jérôme Pouiller <jerome.pouiller@...abs.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: drivers/staging/wfx/main.c:47:14-21: ERROR: PTR_ERR applied after
 initialization to constant on line 42

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   19a61a753d0705fcb41e7aa130351e0a0a54c3bd
commit: 0096214a59a72b3c3c943e27bd03307324d3ce0f staging: wfx: add support for I/O access
date:   9 months ago
config: c6x-randconfig-c024-20200705 (attached as .config)
compiler: c6x-elf-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>


coccinelle warnings: (new ones prefixed by >>)

>> drivers/staging/wfx/main.c:47:14-21: ERROR: PTR_ERR applied after initialization to constant on line 42

vim +47 drivers/staging/wfx/main.c

    30	
    31	struct gpio_desc *wfx_get_gpio(struct device *dev, int override, const char *label)
    32	{
    33		struct gpio_desc *ret;
    34		char label_buf[256];
    35	
    36		if (override >= 0) {
    37			snprintf(label_buf, sizeof(label_buf), "wfx_%s", label);
    38			ret = ERR_PTR(devm_gpio_request_one(dev, override, GPIOF_OUT_INIT_LOW, label_buf));
    39			if (!ret)
    40				ret = gpio_to_desc(override);
    41		} else if (override == -1) {
  > 42			ret = NULL;
    43		} else {
    44			ret = devm_gpiod_get(dev, label, GPIOD_OUT_LOW);
    45		}
    46		if (IS_ERR(ret) || !ret) {
  > 47			if (!ret || PTR_ERR(ret) == -ENOENT)
    48				dev_warn(dev, "gpio %s is not defined\n", label);
    49			else
    50				dev_warn(dev, "error while requesting gpio %s\n", label);
    51			ret = NULL;
    52		} else {
    53			dev_dbg(dev, "using gpio %d for %s\n", desc_to_gpio(ret), label);
    54		}
    55		return ret;
    56	}
    57	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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