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Date: Mon, 24 Jan 2022 19:38:45 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Erhard Furtner <erhard_f@...lbox.org>, Christophe Leroy <christophe.leroy@...roup.eu>, Michael Ellerman <mpe@...erman.id.au>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.15 408/846] powerpc/powermac: Add additional missing lockdep_register_key() From: Christophe Leroy <christophe.leroy@...roup.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@...lbox.org> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu> Depends-on: df1f679d19ed ("powerpc/powermac: Add missing lockdep_register_key()") Signed-off-by: Michael Ellerman <mpe@...erman.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@...nel.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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