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66b7e05dc0
linux/arch/arm64
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Steven Price 66b7e05dc0 KVM: arm64: Fix kvm_reset_vcpu() return code being incorrect with SVE 
If SVE is enabled then 'ret' can be assigned the return value of
kvm_vcpu_enable_sve() which may be 0 causing future "goto out" sites to
erroneously return 0 on failure rather than -EINVAL as expected.

Remove the initialisation of 'ret' and make setting the return value
explicit to avoid this situation in the future.

Fixes: 9a3cdf26e3 ("KVM: arm64/sve: Allow userspace to enable SVE for vcpus")
Cc: stable@vger.kernel.org
Reported-by: James Morse <james.morse@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200617105456.28245-1-steven.price@arm.com
2020-06-22 14:39:57 +01:00
..
boot IOMMU Updates for Linux v5.8 2020-06-08 11:42:23 -07:00
configs ARM: defconfig updates fopr 5.8 2020-06-04 19:54:15 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-06-01 12:00:10 -07:00
include KVM: arm64: Annotate hyp NMI-related functions as __always_inline 2020-06-22 14:39:45 +01:00
kernel arm64 merge window fixes for -rc1 2020-06-11 12:53:23 -07:00
kvm KVM: arm64: Fix kvm_reset_vcpu() return code being incorrect with SVE 2020-06-22 14:39:57 +01:00
lib Merge branch 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux 2020-06-10 14:46:54 -07:00
mm mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
net Merge branch 'for-next/bti' into for-next/core 2020-05-28 18:00:51 +01:00
xen arm64: xen: Use modern annotations for assembly functions 2020-01-09 16:09:42 +00:00
Kbuild arm64: add arch/arm64/Kbuild 2019-08-21 18:47:15 +01:00
Kconfig Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
Kconfig.debug arm64: mm: use ARCH_HAS_DEBUG_WX instead of arch defined 2020-06-03 20:09:50 -07:00
Kconfig.platforms This time around we have 4 lines of diff in the core framework, removing a 2020-06-10 11:42:19 -07:00
Makefile Kbuild updates for v5.8 2020-06-06 12:00:25 -07:00