| Message ID | 1528387897-6781-1-git-send-email-greearb@candelatech.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Ben Greear <greearb@candelatech.com> wrote: > From: Ben Greear <greearb@candelatech.com> > > While debugging driver crashes related to a buggy firmware > crashing under load, I noticed that ath10k_htt_rx_ring_free > could be called without being under lock. I'm not sure if this > is the root cause of the crash or not, but it seems prudent to > protect it. > > Signed-off-by: Ben Greear <greearb@candelatech.com> Failed to apply, please use ath.git master branch as the baseline. Also document the tested hardware and firmware versions in the commit log. https://wireless.wiki.kernel.org/en/users/drivers/ath10k/submittingpatches error: patch failed: drivers/net/wireless/ath/ath10k/htt_rx.c:282 error: drivers/net/wireless/ath/ath10k/htt_rx.c: patch does not apply stg import: Diff does not apply cleanly Patch set to Changes Requested.
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index d74901d..963ddc1 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -266,11 +266,12 @@ int ath10k_htt_rx_ring_refill(struct ath10k *ar) spin_lock_bh(&htt->rx_ring.lock); ret = ath10k_htt_rx_ring_fill_n(htt, (htt->rx_ring.fill_level - htt->rx_ring.fill_cnt)); - spin_unlock_bh(&htt->rx_ring.lock); if (ret) ath10k_htt_rx_ring_free(htt); + spin_unlock_bh(&htt->rx_ring.lock); + return ret; } @@ -282,7 +283,9 @@ void ath10k_htt_rx_free(struct ath10k_htt *htt) skb_queue_purge(&htt->rx_in_ord_compl_q); skb_queue_purge(&htt->tx_fetch_ind_q); + spin_lock_bh(&htt->rx_ring.lock); ath10k_htt_rx_ring_free(htt); + spin_unlock_bh(&htt->rx_ring.lock); dma_free_coherent(htt->ar->dev, htt->rx_ops->htt_get_rx_ring_size(htt),