powerpc/powermac: Add additional missing lockdep_register_key()

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

diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index de34fa3..df89d91 100644 (file)
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -811,6 +811,7 @@ 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);
@@ -934,6 +935,7 @@ 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);