selftests/powerpc: Fix error handling in FPU/VMX preemption tests

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[ Upstream commit 9dbd592740 ]

The FPU & VMX preemption tests do not check for errors returned by the
low-level asm routines, preempt_fpu() / preempt_vsx() respectively.
That means any register corruption detected by the asm routines does not
result in a test failure.

Fix it by returning the return value of the asm routines from the
pthread child routines.

Fixes: e5ab8be68e ("selftests/powerpc: Test preservation of FPU and VMX regs across preemption")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231128132748.1990179-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Michael Ellerman 2023-11-29 00:27:44 +11:00 • committed by Greg Kroah-Hartman

parent 026fd977dc

commit 327d4f2d66

2 changed files with 11 additions and 8 deletions

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9

tools/testing/selftests/powerpc/math/fpu_preempt.c

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10

tools/testing/selftests/powerpc/math/vmx_preempt.c

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