From 10d23db44a6ab4bb454228e9e97ef19455522627 Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Fri, 22 Aug 2014 14:33:15 +0200 Subject: [PATCH] ath10k: update comment regarding warm reset The old comment was a little out of date.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 Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/pci.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 21f7dc3fb57e..daa38ce29c5e 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -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; -- 2.20.1