ath10k: convert ath10k_pci_wake() to return
We should not try to access hw if wakeup fails so add
proper error checking for that. Also add the timeout lenght
to the warning message.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 6a80142..19f23a2 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -277,7 +277,9 @@
ath10k_warn("%s: send more we can (nbytes: %d, max: %d)\n",
__func__, nbytes, ce_state->src_sz_max);
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return ret;
if (unlikely(CE_RING_DELTA(nentries_mask,
write_index, sw_index - 1) <= 0)) {
@@ -419,7 +421,9 @@
write_index = dest_ring->write_index;
sw_index = dest_ring->sw_index;
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ goto out;
if (CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) > 0) {
struct ce_desc *base = dest_ring->base_addr_owner_space;
@@ -441,6 +445,8 @@
ret = -EIO;
}
ath10k_pci_sleep(ar);
+
+out:
spin_unlock_bh(&ar_pci->ce_lock);
return ret;
@@ -596,6 +602,7 @@
unsigned int sw_index = src_ring->sw_index;
struct ce_desc *sdesc, *sbase;
unsigned int read_index;
+ int ret;
if (src_ring->hw_index == sw_index) {
/*
@@ -605,10 +612,15 @@
* the SW has really caught up to the HW, or if the cached
* value of the HW index has become stale.
*/
- ath10k_pci_wake(ar);
+
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return ret;
+
src_ring->hw_index =
ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
src_ring->hw_index &= nentries_mask;
+
ath10k_pci_sleep(ar);
}
@@ -735,8 +747,12 @@
unsigned int nbytes;
unsigned int id;
unsigned int flags;
+ int ret;
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return;
+
spin_lock_bh(&ar_pci->ce_lock);
/* Clear the copy-complete interrupts that will be handled here. */
@@ -795,10 +811,13 @@
void ath10k_ce_per_engine_service_any(struct ath10k *ar)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
- int ce_id;
+ int ce_id, ret;
u32 intr_summary;
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return;
+
intr_summary = CE_INTERRUPT_SUMMARY(ar);
for (ce_id = 0; intr_summary && (ce_id < ar_pci->ce_count); ce_id++) {
@@ -826,8 +845,11 @@
{
u32 ctrl_addr = ce_state->ctrl_addr;
struct ath10k *ar = ce_state->ar;
+ int ret;
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return;
if ((!disable_copy_compl_intr) &&
(ce_state->send_cb || ce_state->recv_cb))
@@ -843,9 +865,12 @@
void ath10k_ce_disable_interrupts(struct ath10k *ar)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
- int ce_id;
+ int ce_id, ret;
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return;
+
for (ce_id = 0; ce_id < ar_pci->ce_count; ce_id++) {
struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
u32 ctrl_addr = ce_state->ctrl_addr;