Peng Fan 59242fa1d2 regmap: debugfs: check count when read regmap file ... commit 74edd08a4f upstream. When executing the following command, we met kernel dump. dmesg -c > /dev/null; cd /sys; for i in `ls /sys/kernel/debug/regmap/* -d`; do echo "Checking regmap in $i"; cat $i/registers; done && grep -ri "0x02d0" *; It is because the count value is too big, and kmalloc fails. So add an upper bound check to allow max size `PAGE_SIZE << (MAX_ORDER - 1)`. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/1584064687-12964-1-git-send-email-peng.fan@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-07-31 18:39:32 +02:00
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Kconfig	…
Makefile	…
internal.h	…
regcache-flat.c	…
regcache-lzo.c	…
regcache-rbtree.c	…
regcache.c	…
regmap-ac97.c	…
regmap-debugfs.c	regmap: debugfs: check count when read regmap file	2020-07-31 18:39:32 +02:00
regmap-i2c.c	…
regmap-i3c.c	…
regmap-irq.c	…
regmap-mmio.c	…
regmap-sccb.c	…
regmap-sdw.c	…
regmap-slimbus.c	…
regmap-spi.c	…
regmap-spmi.c	…
regmap-w1.c	…
regmap.c	regmap: dev_get_regmap_match(): fix string comparison	2020-07-29 10:18:37 +02:00
trace.h	…