diff options
| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2012-03-15 13:43:29 -0700 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2012-03-26 15:07:26 -0400 |
| commit | b5447ff92b5169eab843a76d83e98d0cd7b7f5b6 (patch) | |
| tree | 76892644681be24cece7e8a9bc7a992301420ab2 /drivers/net/wireless/ath/ath9k/recv.c | |
| parent | ath9k: reduce listen time period (diff) | |
| download | linux-dev-b5447ff92b5169eab843a76d83e98d0cd7b7f5b6.tar.xz linux-dev-b5447ff92b5169eab843a76d83e98d0cd7b7f5b6.zip | |
ath9k: fix a memory leak in ath_rx_tasklet()
commit 0d95521ea7 (ath9k: use split rx buffers to get rid of order-1 skb
allocations) added in memory leak in error path.
sc->rx.frag should be cleared after the pskb_expand_head() call, or else
we jump to requeue_drop_frag and leak an skb.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Jouni Malinen <jouni@qca.qualcomm.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: Trond Wuellner <trond@chromium.org>
Cc: Grant Grundler <grundler@chromium.org>
Cc: Paul Stewart <pstew@chromium.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/recv.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/recv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index f4ae3ba994a8..1c4583c7ff7c 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -1913,13 +1913,13 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) if (sc->rx.frag) { int space = skb->len - skb_tailroom(hdr_skb); - sc->rx.frag = NULL; - if (pskb_expand_head(hdr_skb, 0, space, GFP_ATOMIC) < 0) { dev_kfree_skb(skb); goto requeue_drop_frag; } + sc->rx.frag = NULL; + skb_copy_from_linear_data(skb, skb_put(hdr_skb, skb->len), skb->len); dev_kfree_skb_any(skb); |