netprio_cgroup: fix an off-by-one bug
# mount -t cgroup xxx /mnt
# mkdir /mnt/tmp
# cat /mnt/tmp/net_prio.ifpriomap
lo 0
eth0 0
virbr0 0
# echo 'lo 999' > /mnt/tmp/net_prio.ifpriomap
# cat /mnt/tmp/net_prio.ifpriomap
lo 999
eth0 0
virbr0 4101267344
We got weired output, because we exceeded the boundary of the array.
We may even crash the kernel..
Origionally-authored-by: Li Zefan <[email protected]>
Signed-off-by: Li Zefan <[email protected]>
Signed-off-by: Neil Horman <[email protected]>
CC: "David S. Miller" <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
1 file changed
