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authorFeras Daoud <ferasda@mellanox.com>2016-12-28 15:47:24 +0300
committerDoug Ledford <dledford@redhat.com>2017-01-12 22:01:04 +0300
commit89a3987ab7a923c047c6dec008e60ad6f41fac22 (patch)
tree2e09d546359d09da9c4cac58c51e04620ecc4dbd /tools/perf/scripts/python/exported-sql-viewer.py
parent0a0007f28304cb9fc87809c86abb80ec71317f20 (diff)
downloadlinux-89a3987ab7a923c047c6dec008e60ad6f41fac22.tar.xz
IB/ipoib: rtnl_unlock can not come after free_netdev
The ipoib_vlan_add function calls rtnl_unlock after free_netdev, rtnl_unlock not only releases the lock, but also calls netdev_run_todo. The latter function browses the net_todo_list array and completes the unregistration of all its net_device instances. If we call free_netdev before rtnl_unlock, then netdev_run_todo call over the freed device causes panic. To fix, move rtnl_unlock call before free_netdev call. Fixes: 9baa0b036410 ("IB/ipoib: Add rtnl_link_ops support") Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Feras Daoud <ferasda@mellanox.com> Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
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