powerpc/pci: Reorder pci bus/bridge unregistration during PHB removal

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commit 7340056567 upstream.

Commit bcdde7e made __sysfs_remove_dir() recursive and introduced a BUG_ON
during PHB removal while attempting to delete the power managment attribute
group of the bus. This is a result of tearing the bridge and bus devices down
out of order in remove_phb_dynamic. Since, the the bus resides below the bridge
in the sysfs device tree it should be torn down first.

This patch simply moves the device_unregister call for the PHB bridge device
after the device_unregister call for the PHB bus.

Fixes: bcdde7e221 ("sysfs: make __sysfs_remove_dir() recursive")
Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Tyrel Datwyler 2014-07-29 13:48:13 -04:00 • committed by Greg Kroah-Hartman

parent bc90432775

commit 51d79fc2bc

1 changed files with 2 additions and 2 deletions

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arch/powerpc/platforms/pseries/pci_dlpar.c

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