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path: root/drivers/net/wireless/ath/ath10k/ce.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath10k/ce.c')
-rw-r--r--drivers/net/wireless/ath/ath10k/ce.c11
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;