diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/ce.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/ce.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c index d185dc0cd12b..4333107ecf37 100644 --- a/drivers/net/wireless/ath/ath10k/ce.c +++ b/drivers/net/wireless/ath/ath10k/ce.c @@ -603,16 +603,19 @@ static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state, if (ret) return ret; - src_ring->hw_index = - ath10k_ce_src_ring_read_index_get(ar, ctrl_addr); - src_ring->hw_index &= nentries_mask; + read_index = ath10k_ce_src_ring_read_index_get(ar, ctrl_addr); + if (read_index == 0xffffffff) + return -ENODEV; + + read_index &= nentries_mask; + src_ring->hw_index = read_index; ath10k_pci_sleep(ar); } read_index = src_ring->hw_index; - if ((read_index == sw_index) || (read_index == 0xffffffff)) + if (read_index == sw_index) return -EIO; sbase = src_ring->shadow_base; |