path: root/kernel
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authorRoland Dreier <>2011-12-06 10:47:37 -0800
committerRohan Somvanshi <>2012-01-11 09:28:47 -0800
commit2976f8a85459c5a088171b9792292c2eab2d9147 (patch)
tree455629e23430abd11b26682a8ba9059c9605f7b4 /kernel
parent52e9df65392e5de748aa38ca21ab6475d7547722 (diff)
IB/mlx4: Fix shutdown crash accessing a non-existent bitmap
commit 4af3ce0de0c12e5c17811eaefad36ab8e146c0fd upstream. Commit cfcde11c3d7a ("IB/mlx4: Use flow counters on IBoE ports") added code that sets elements of counters[] to -1 if no counter is allocated, but then goes ahead and passes every entry to mlx4_counter_free() on shutdown. This is a bad idea, especially if MLX4_DEV_CAP_FLAG_COUNTERS isn't set so there isn't even an underlying bitmap to free from. Tested-by: Sean Hefty <> Signed-off-by: Roland Dreier <> Signed-off-by: Greg Kroah-Hartman <> Change-Id: I8b6984422659dd49fdbf9ef3c829bd2bb3798053 Reviewed-on: http://git-master/r/74174 Reviewed-by: Varun Wadekar <> Tested-by: Varun Wadekar <>
Diffstat (limited to 'kernel')
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