diff options
| author | Nogah Frankel <nogahf@mellanox.com> | 2017-12-04 13:31:10 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-25 11:03:40 +0100 |
| commit | ba51edae4b38ed49fafd7276440b43faf5cde29e (patch) | |
| tree | 814abacfb7905bf58c8cf2f63054c41618509c0e | |
| parent | 034317d43f532e0678eaf0701e692ff4cc436186 (diff) | |
| download | linux-stable-ba51edae4b38ed49fafd7276440b43faf5cde29e.tar.gz linux-stable-ba51edae4b38ed49fafd7276440b43faf5cde29e.tar.bz2 linux-stable-ba51edae4b38ed49fafd7276440b43faf5cde29e.zip | |
net_sched: red: Avoid devision by zero
[ Upstream commit 5c472203421ab4f928aa1ae9e1dbcfdd80324148 ]
Do not allow delta value to be zero since it is used as a divisor.
Fixes: 8af2a218de38 ("sch_red: Adaptative RED AQM")
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/net/red.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/red.h b/include/net/red.h index 76e0b5f922c6..ba5039418a93 100644 --- a/include/net/red.h +++ b/include/net/red.h @@ -178,7 +178,7 @@ static inline void red_set_parms(struct red_parms *p, p->qth_max = qth_max << Wlog; p->Wlog = Wlog; p->Plog = Plog; - if (delta < 0) + if (delta <= 0) delta = 1; p->qth_delta = delta; if (!max_P) { |