kselftest: vDSO: Fix accumulation of uninitialized ret when CLOCK_REALTIME is undefined

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[ Upstream commit 375b9ff53c ]

In the unlikely case that CLOCK_REALTIME is not defined, variable ret is
not initialized and further accumulation of return values to ret can leave
ret in an undefined state. Fix this by initialized ret to zero and changing
the assignment of ret to an accumulation for the CLOCK_REALTIME case.

Fixes: 03f55c7952 ("kselftest: Extend vDSO selftest to clock_getres")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Colin Ian King 2023-04-17 11:47:43 +01:00 • committed by Greg Kroah-Hartman

parent b8a6ba524d

commit 64d09c0e83

1 changed files with 2 additions and 2 deletions

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tools/testing/selftests/vDSO/vdso_test_clock_getres.c

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