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    Subject[PATCH 5.10 267/563] powerpc/powermac: Add additional missing lockdep_register_key()
    Date
    From: Christophe Leroy <christophe.leroy@csgroup.eu>

    [ Upstream commit b149d5d45ac9171ed699a256f026c8ebef901112 ]

    Commit df1f679d19ed ("powerpc/powermac: Add missing
    lockdep_register_key()") fixed a problem that was causing a WARNING.

    There are two other places in the same file with the same problem
    originating from commit 9e607f72748d ("i2c_powermac: shut up lockdep
    warning").

    Add missing lockdep_register_key()

    Fixes: 9e607f72748d ("i2c_powermac: shut up lockdep warning")
    Reported-by: Erhard Furtner <erhard_f@mailbox.org>
    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    Depends-on: df1f679d19ed ("powerpc/powermac: Add missing lockdep_register_key()")
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
    Link: https://bugzilla.kernel.org/show_bug.cgi?id=200055
    Link: https://lore.kernel.org/r/2c7e421874e21b2fb87813d768cf662f630c2ad4.1638984999.git.christophe.leroy@csgroup.eu
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/powerpc/platforms/powermac/low_i2c.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
    index f77a59b5c2e1a..09bfe4b8f25aa 100644
    --- a/arch/powerpc/platforms/powermac/low_i2c.c
    +++ b/arch/powerpc/platforms/powermac/low_i2c.c
    @@ -810,6 +810,7 @@ static void __init pmu_i2c_probe(void)
    bus->hostdata = bus + 1;
    bus->xfer = pmu_i2c_xfer;
    mutex_init(&bus->mutex);
    + lockdep_register_key(&bus->lock_key);
    lockdep_set_class(&bus->mutex, &bus->lock_key);
    bus->flags = pmac_i2c_multibus;
    list_add(&bus->link, &pmac_i2c_busses);
    @@ -933,6 +934,7 @@ static void __init smu_i2c_probe(void)
    bus->hostdata = bus + 1;
    bus->xfer = smu_i2c_xfer;
    mutex_init(&bus->mutex);
    + lockdep_register_key(&bus->lock_key);
    lockdep_set_class(&bus->mutex, &bus->lock_key);
    bus->flags = 0;
    list_add(&bus->link, &pmac_i2c_busses);
    --
    2.34.1


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