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authorJarek Poplawski <jarkao2@gmail.com>2008-04-14 18:10:42 -0400
committerDavid S. Miller <davem@davemloft.net>2008-04-14 18:10:42 -0400
commit066a3b5b2346febf9a655b444567b7138e3bb939 (patch)
tree84d824c9b5e31bfaa8a4b06ba3a96f5ac68e14c5 /net/llc/llc_if.c
parent159d83363b629c91d020734207c1bc788b96af5a (diff)
[NET_SCHED] sch_api: fix qdisc_tree_decrease_qlen() loop
TC_H_MAJ(parentid) for root classes is the same as for ingress, and if ingress qdisc is created qdisc_lookup() returns its pointer (without ingress NULL is returned). After this all qdisc_lookups give the same, and we get endless loop. (I don't know how this could hide for so long - it should trigger with every leaf class deleted if it's qdisc isn't empty.) After this fix qdisc_lookup() is omitted both for ingress and root parents, but looking for root is only wasting a little time here... Many thanks to Enrico Demarin for finding a test for catching this bug, which probably bothered quite a lot of admins. Reported-by: Enrico Demarin <enrico@superclick.com>, Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/llc/llc_if.c')
0 files changed, 0 insertions, 0 deletions