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    Subject[PATCH AUTOSEL for 4.9 103/293] x86/nmi: Fix timeout test in test_nmi_ipi()
    Date
    From: Dan Carpenter <dan.carpenter@oracle.com>

    [ Upstream commit c133c7615751008f6c32ccae7cdfc5ff6e989c35 ]

    We're supposed to exit the loop with "timeout" set to zero.

    Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
    Acked-by: Don Zickus <dzickus@redhat.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: kernel-janitors@vger.kernel.org
    Fixes: 99e8b9ca90d6 ("x86, NMI: Add NMI IPI selftest")
    Link: http://lkml.kernel.org/r/20170619105304.GA23995@elgon.mountain
    Signed-off-by: Ingo Molnar <mingo@kernel.org>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    ---
    arch/x86/kernel/nmi_selftest.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
    index 6d9582ec0324..d27f8d84c4ff 100644
    --- a/arch/x86/kernel/nmi_selftest.c
    +++ b/arch/x86/kernel/nmi_selftest.c
    @@ -78,7 +78,7 @@ static void __init test_nmi_ipi(struct cpumask *mask)

    /* Don't wait longer than a second */
    timeout = USEC_PER_SEC;
    - while (!cpumask_empty(mask) && timeout--)
    + while (!cpumask_empty(mask) && --timeout)
    udelay(1);

    /* What happens if we timeout, do we still unregister?? */
    --
    2.15.1
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