ath10k: update comment regarding warm reset

The old comment was a little out of date. HTT Rx
ring is a more relevant problem when stopping
transport layer.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior 2014-08-22 14:33:15 +02:00 committed by Kalle Valo
parent 728f95eef5
commit 10d23db44a

View File

@ -1243,11 +1243,10 @@ static void ath10k_pci_hif_stop(struct ath10k *ar)
ath10k_pci_irq_disable(ar);
ath10k_pci_flush(ar);
/* Make the sure the device won't access any structures on the host by
* resetting it. The device was fed with PCI CE ringbuffer
* configuration during init. If ringbuffers are freed and the device
* were to access them this could lead to memory corruption on the
* host. */
/* Most likely the device has HTT Rx ring configured. The only way to
* prevent the device from accessing (and possible corrupting) host
* memory is to reset the chip now.
*/
ath10k_pci_warm_reset(ar);
ar_pci->started = 0;