Commit b4f91664 authored by Atul Gupta's avatar Atul Gupta Committed by Herbert Xu

crypto: chelsio - Fix NULL pointer dereference

Do not request FW to generate cidx update if there is less
space in tx queue to post new request.
SGE DBP 1 pidx increment too large
BUG: unable to handle kernel NULL pointer dereference at
0000000000000124
SGE error for queue 101
Signed-off-by: default avatarAtul Gupta <atul.gupta@chelsio.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent e59f755c
...@@ -575,6 +575,7 @@ inline void *chcr_crypto_wreq(struct sk_buff *skb, ...@@ -575,6 +575,7 @@ inline void *chcr_crypto_wreq(struct sk_buff *skb,
if (unlikely(credits < ETHTXQ_STOP_THRES)) { if (unlikely(credits < ETHTXQ_STOP_THRES)) {
netif_tx_stop_queue(q->txq); netif_tx_stop_queue(q->txq);
q->q.stops++; q->q.stops++;
if (!q->dbqt)
wr_mid |= FW_WR_EQUEQ_F | FW_WR_EQUIQ_F; wr_mid |= FW_WR_EQUEQ_F | FW_WR_EQUIQ_F;
} }
wr_mid |= FW_ULPTX_WR_DATA_F; wr_mid |= FW_ULPTX_WR_DATA_F;
......
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