It looks like the put_device (line 891) should be one line earlier.
julia
---------- Forwarded message ----------
Date: Tue, 23 Jun 2020 15:26:47 +0800
From: kernel test robot <lkp@xxxxxxxxx>
To: kbuild@xxxxxxxxxxxx
Cc: lkp@xxxxxxxxx, Julia Lawall <julia.lawall@xxxxxxx>
Subject: Re: [PATCH 16/22] gpiolib: cdev: add V2 uAPI implementation to parity
with V1
CC: kbuild-all@xxxxxxxxxxxx
In-Reply-To: <20200623040107.22270-17-warthog618@xxxxxxxxx>
References: <20200623040107.22270-17-warthog618@xxxxxxxxx>
TO: Kent Gibson <warthog618@xxxxxxxxx>
TO: linux-kernel@xxxxxxxxxxxxxxx
TO: linux-gpio@xxxxxxxxxxxxxxx
TO: bgolaszewski@xxxxxxxxxxxx
TO: linus.walleij@xxxxxxxxxx
CC: Kent Gibson <warthog618@xxxxxxxxx>
Hi Kent,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on gpio/for-next]
[also build test WARNING on next-20200622]
[cannot apply to linux/master linus/master v5.8-rc2]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Kent-Gibson/gpio-cdev-add-uAPI-V2/20200623-120634
base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
:::::: branch date: 3 hours ago
:::::: commit date: 3 hours ago
config: nios2-randconfig-c023-20200623 (attached as .config)
compiler: nios2-linux-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Julia Lawall <julia.lawall@xxxxxxx>
coccinelle warnings: (new ones prefixed by >>)
>> drivers/gpio/gpiolib-cdev.c:891:13-17: ERROR: reference preceded by free on line 890
# https://github.com/0day-ci/linux/commit/f3b3ae8752adc5ac33dcf83d49b0b02f2d7ef43b
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout f3b3ae8752adc5ac33dcf83d49b0b02f2d7ef43b
vim +891 drivers/gpio/gpiolib-cdev.c
f3b3ae8752adc5a Kent Gibson 2020-06-23 876
f3b3ae8752adc5a Kent Gibson 2020-06-23 877 static void line_free(struct line *line)
f3b3ae8752adc5a Kent Gibson 2020-06-23 878 {
f3b3ae8752adc5a Kent Gibson 2020-06-23 879 int i;
f3b3ae8752adc5a Kent Gibson 2020-06-23 880
f3b3ae8752adc5a Kent Gibson 2020-06-23 881 for (i = 0; i < line->num_descs; i++) {
f3b3ae8752adc5a Kent Gibson 2020-06-23 882 if (line->edets)
f3b3ae8752adc5a Kent Gibson 2020-06-23 883 edge_detector_stop(&line->edets[i]);
f3b3ae8752adc5a Kent Gibson 2020-06-23 884 if (line->descs[i])
f3b3ae8752adc5a Kent Gibson 2020-06-23 885 gpiod_free(line->descs[i]);
f3b3ae8752adc5a Kent Gibson 2020-06-23 886 }
f3b3ae8752adc5a Kent Gibson 2020-06-23 887 kfifo_free(&line->events);
f3b3ae8752adc5a Kent Gibson 2020-06-23 888 kfree(line->label);
f3b3ae8752adc5a Kent Gibson 2020-06-23 889 kfree(line->edets);
f3b3ae8752adc5a Kent Gibson 2020-06-23 @890 kfree(line);
f3b3ae8752adc5a Kent Gibson 2020-06-23 @891 put_device(&line->gdev->dev);
f3b3ae8752adc5a Kent Gibson 2020-06-23 892 }
f3b3ae8752adc5a Kent Gibson 2020-06-23 893
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0-DAY CI Kernel Test Service, Intel Corporation
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