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authorDmitry Rokosov <DDRokosov@sberdevices.ru>2022-05-24 18:14:45 +0000
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2022-06-19 17:22:49 +0100
commitd710359c0b445e8c03e24f19ae2fb79ce7282260 (patch)
treecb3f0d69cd0dc5ca562a828e96d32d33e8893542 /tools/perf/scripts/python/failed-syscalls-by-pid.py
parent9354c224c9b4f55847a0de3e968cba2ebf15af3b (diff)
iio:chemical:ccs811: rearrange iio trigger get and register
IIO trigger interface function iio_trigger_get() should be called after iio_trigger_register() (or its devm analogue) strictly, because of iio_trigger_get() acquires module refcnt based on the trigger->owner pointer, which is initialized inside iio_trigger_register() to THIS_MODULE. If this call order is wrong, the next iio_trigger_put() (from sysfs callback or "delete module" path) will dereference "default" module refcnt, which is incorrect behaviour. Fixes: f1f065d7ac30 ("iio: chemical: ccs811: Add support for data ready trigger") Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220524181150.9240-5-ddrokosov@sberdevices.ru Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
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