Fabrice Gasnier 796fc331c3 counter: stm32-timer-cnt: fix ceiling write max value ... commit e4c3e133294c0a292d21073899b05ebf530169bd upstream. The ceiling value isn't checked before writing it into registers. The user could write a value higher than the counter resolution (e.g. 16 or 32 bits indicated by max_arr). This makes most significant bits to be truncated. Fix it by checking the max_arr to report a range error [1] to the user. [1] https://lkml.org/lkml/2021/2/12/358 Fixes: ad29937e20 ("counter: Add STM32 Timer quadrature encoder") Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: <Stable@vger.kernel.org> Link: https://lore.kernel.org/r/1614696235-24088-1-git-send-email-fabrice.gasnier@foss.st.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-24 11:26:43 +01:00
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104-quad-8.c	counter: 104-quad-8: Add lock guards - generic interface	2020-05-02 08:48:44 +02:00
counter.c
ftm-quaddec.c	counter/ftm-quaddec: Use device-managed registration API	2019-07-27 22:55:27 +01:00
Kconfig	Second set of IIO fixes for the 5.2 cycle.	2019-06-17 22:28:29 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
stm32-lptimer-cnt.c	counter: stm32-lptimer: add counter device	2019-04-25 21:33:41 +02:00
stm32-timer-cnt.c	counter: stm32-timer-cnt: fix ceiling write max value	2021-03-24 11:26:43 +01:00