Hi Julia, On 2016-01-29 23:06, Julia Lawall wrote: > I haven't checked the entire context, but it look suspicious to have the > kfree in the remove function and not in the probe function. Oh, yes, clearly an error I introduced. Will take a look at that.
> > Unrlatedly, do the probe and remove functions really needed to be > exported? They are required in two variants of the driver, -spi and -i2c... Hence I guess yeah. -- Stefan > > On Sat, 30 Jan 2016, kbuild test robot wrote: >> >> Hi Stefan, >> >> [auto build test WARNING on input/next] >> [also build test WARNING on v4.5-rc1 next-20160129] >> [if your patch is applied to the wrong git tree, please drop us a note to >> help improving the system] >> >> url: >> https://github.com/0day-ci/linux/commits/Stefan-Agner/input-touchscreen-ad7879-move-header-to-platform_data-directory/20160130-075110 >> base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next >> :::::: branch date: 2 hours ago >> :::::: commit date: 2 hours ago >> >> >> drivers/input/touchscreen/ad7879.c:676:1-6: WARNING: invalid free of >> >> devm_ allocated data >> >> git remote add linux-review https://github.com/0day-ci/linux >> git remote update linux-review >> git checkout 0e522b6d5ce3104accf736302f6de5386b9af789 >> vim +676 drivers/input/touchscreen/ad7879.c >> >> b4be468c Michael Hennerich 2009-03-09 660 >> ec51b7f5 Michael Hennerich 2010-01-19 661 err_remove_gpio: >> 4397c98a Mike Frysinger 2010-06-30 662 ad7879_gpio_remove(ts); >> b4be468c Michael Hennerich 2009-03-09 663 err_remove_attr: >> 4397c98a Mike Frysinger 2010-06-30 664 sysfs_remove_group(&dev->kobj, >> &ad7879_attr_group); >> 4397c98a Mike Frysinger 2010-06-30 665 err_out: >> 4397c98a Mike Frysinger 2010-06-30 666 return ERR_PTR(err); >> b4be468c Michael Hennerich 2009-03-09 667 } >> 4397c98a Mike Frysinger 2010-06-30 668 EXPORT_SYMBOL(ad7879_probe); >> b4be468c Michael Hennerich 2009-03-09 669 >> 4397c98a Mike Frysinger 2010-06-30 670 void ad7879_remove(struct ad7879 >> *ts) >> b4be468c Michael Hennerich 2009-03-09 671 { >> 4397c98a Mike Frysinger 2010-06-30 672 ad7879_gpio_remove(ts); >> 4397c98a Mike Frysinger 2010-06-30 673 >> sysfs_remove_group(&ts->dev->kobj, &ad7879_attr_group); >> 4397c98a Mike Frysinger 2010-06-30 674 free_irq(ts->irq, ts); >> b4be468c Michael Hennerich 2009-03-09 675 >> input_unregister_device(ts->input); >> b4be468c Michael Hennerich 2009-03-09 @676 kfree(ts); >> b4be468c Michael Hennerich 2009-03-09 677 } >> 4397c98a Mike Frysinger 2010-06-30 678 EXPORT_SYMBOL(ad7879_remove); >> b4be468c Michael Hennerich 2009-03-09 679 >> b4be468c Michael Hennerich 2009-03-09 680 MODULE_AUTHOR("Michael Hennerich >> <[email protected]>"); >> b4be468c Michael Hennerich 2009-03-09 681 MODULE_DESCRIPTION("AD7879(-1) >> touchscreen Driver"); >> b4be468c Michael Hennerich 2009-03-09 682 MODULE_LICENSE("GPL"); >> >> :::::: The code at line 676 was first introduced by commit >> :::::: b4be468cc1e65110d9144751bf7079dad6f142b7 Input: add AD7879 >> Touchscreen driver >> >> :::::: TO: Michael Hennerich <[email protected]> >> :::::: CC: Dmitry Torokhov <[email protected]> >> >> --- >> 0-DAY kernel test infrastructure Open Source Technology Center >> https://lists.01.org/pipermail/kbuild-all Intel Corporation >>
