Re: [PATCH v2] Input: elants_i2c - Fix NULL dereference at probing

From: kernel test robot
Date: Thu May 27 2021 - 15:18:44 EST


Hi Takashi,

I love your patch! Perhaps something to improve:

[auto build test WARNING on input/next]
[also build test WARNING on hid/for-next linux/master linus/master v5.13-rc3 next-20210527]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Takashi-Iwai/Input-elants_i2c-Fix-NULL-dereference-at-probing/20210528-013428
base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
config: arm-randconfig-r015-20210526 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/8a6af622a33ab5301cea789e5ff6a9afd9b09828
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Takashi-Iwai/Input-elants_i2c-Fix-NULL-dereference-at-probing/20210528-013428
git checkout 8a6af622a33ab5301cea789e5ff6a9afd9b09828
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm

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

All warnings (new ones prefixed by >>):

>> drivers/input/touchscreen/elants_i2c.c:1640:43: warning: initialization of 'const void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1640 | { .compatible = "elan,ektf3624", .data = EKTF3624 },
| ^~~~~~~~
drivers/input/touchscreen/elants_i2c.c:1640:43: note: (near initialization for 'elants_of_match[1].data')


vim +1640 drivers/input/touchscreen/elants_i2c.c

1636
1637 #ifdef CONFIG_OF
1638 static const struct of_device_id elants_of_match[] = {
1639 { .compatible = "elan,ekth3500", .data = EKTH3500 },
> 1640 { .compatible = "elan,ektf3624", .data = EKTF3624 },
1641 { /* sentinel */ }
1642 };
1643 MODULE_DEVICE_TABLE(of, elants_of_match);
1644 #endif
1645

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

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