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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2015-02-26 21:50:41 +0100 |
|---|---|---|
| committer | Kukjin Kim <kgene@kernel.org> | 2015-02-26 21:50:52 +0100 |
| commit | ca489c58ef0b81cc9c9252fd92e6c9bb38d3c408 (patch) | |
| tree | 0990ef777d9e882e193e92b93273b53bf715dc2e /arch/arm/oprofile | |
| parent | Linux 4.0-rc1 (diff) | |
| download | linux-ca489c58ef0b81cc9c9252fd92e6c9bb38d3c408.tar.xz linux-ca489c58ef0b81cc9c9252fd92e6c9bb38d3c408.zip | |
ARM: EXYNOS: Don't use LDREX and STREX after disabling cache coherency
During CPU shutdown the exynos_cpu_power_down() is called after
disabling cache coherency and it uses LDREX and STREX instructions (by
calling of_machine_is_compatible() -> kobject_get() -> kref_get()).
The LDREX and STREX should not be used after disabling the cache
coherency so just use soc_is_exynos().
Fixes: adc548d77c22 ("ARM: EXYNOS: Use MCPM call-backs to support S2R
on exynos5420")
Reported-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Diffstat (limited to 'arch/arm/oprofile')
0 files changed, 0 insertions, 0 deletions