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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2017-02-03 13:20:18 -0500
committerDavid S. Miller <davem@davemloft.net>2017-02-06 16:53:28 -0500
commit9c26542685130ef3b55cdb4e04eec0ac33376b41 (patch)
tree46a9c7f7c66783b327f287abbdacb7592acb1891 /net/wireless/debugfs.c
parent8e92ab3a426e04dc355b196e3b4474f633025a3b (diff)
net: dsa: rollback bridging on error
When an error is returned during the bridging of a port in a NETDEV_CHANGEUPPER event, net/core/dev.c rolls back the operation. Be consistent and unassign dp->bridge_dev when this happens. In the meantime, add comments to document this behavior. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/wireless/debugfs.c')
0 files changed, 0 insertions, 0 deletions
CIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'tools/perf/arch/arm64/tests/dwarf-unwind.c')