pinctrl: samsung: Correct EINTG banks order
authorPaweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Mon, 16 Apr 2018 15:52:45 +0000 (17:52 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 3 Jul 2018 09:24:56 +0000 (11:24 +0200)
commit7cc7ae5ce0189f5032fe42eabeb80361eede6783
tree36049586301b2519979d0fd2cdf4d9a17e6f9da1
parent9e838b2e5a3c2ee04e46302f7d3d644b7dc4daf5
pinctrl: samsung: Correct EINTG banks order

commit 5cf9a338db94cfd570aa2607bef1b30996f188e3 upstream.

All banks with GPIO interrupts should be at beginning of bank array and
without any other types of banks between them.  This order is expected
by exynos_eint_gpio_irq, when doing interrupt group to bank translation.
Otherwise, kernel NULL pointer dereference would happen when trying to
handle interrupt, due to wrong bank being looked up.  Observed on
s5pv210, when trying to handle gpj0 interrupt, where kernel was mapping
it to gpi bank.

Cc: stable@vger.kernel.org
Fixes: 023e06dfa688 ("pinctrl: exynos: add exynos5410 SoC specific data")
Fixes: 608a26a7bc04 ("pinctrl: Add s5pv210 support to pinctrl-exynos)
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/pinctrl/samsung/pinctrl-exynos-arm.c