diff options
| author | Milton Miller <miltonm@bga.com> | 2010-12-30 02:01:03 -0600 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-01-04 14:17:23 -0500 |
| commit | 919bbad580445801c22ef6ccbe624551fee652bd (patch) | |
| tree | dce1f537c484cd05912eac54c9009024ff98b1cb /net/mac80211/rx.c | |
| parent | 554d1d027b19265c4aa3f718b3126d2b86e09a08 (diff) | |
| download | lwn-919bbad580445801c22ef6ccbe624551fee652bd.tar.gz lwn-919bbad580445801c22ef6ccbe624551fee652bd.zip | |
mac80211: fix mesh forwarding when ratelimited too
Commit b51aff057c9d0ef6c529dc25fd9f775faf7b6c63 said:
Under memory pressure, the mac80211 mesh code
may helpfully print a message that it failed
to clone a mesh frame and then will proceed
to crash trying to use it anyway. Fix that.
Avoid the reference whenever the frame copy is unsuccessful
regardless of the debug message being suppressed or printed.
Cc: stable@kernel.org [2.6.27+]
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rx.c')
| -rw-r--r-- | net/mac80211/rx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index b01e467b76c6..e98668fab503 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1788,11 +1788,11 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) fwd_skb = skb_copy(skb, GFP_ATOMIC); - if (!fwd_skb && net_ratelimit()) { + if (!fwd_skb && net_ratelimit()) printk(KERN_DEBUG "%s: failed to clone mesh frame\n", sdata->name); + if (!fwd_skb) goto out; - } fwd_hdr = (struct ieee80211_hdr *) fwd_skb->data; memcpy(fwd_hdr->addr2, sdata->vif.addr, ETH_ALEN); |