diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/pci.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index eaa99561dab3..46c94ce58f97 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -1353,6 +1353,13 @@ static void ath10k_pci_hif_stop(struct ath10k *ar) ath10k_pci_cleanup_ce(ar); ath10k_pci_buffer_cleanup(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. */ + ath10k_pci_device_reset(ar); + ar_pci->started = 0; } @@ -1915,6 +1922,7 @@ err_irq: ath10k_ce_disable_interrupts(ar); ath10k_pci_stop_intr(ar); ath10k_pci_kill_tasklet(ar); + ath10k_pci_device_reset(ar); err_ce: ath10k_pci_ce_deinit(ar); err_ps: @@ -1929,6 +1937,7 @@ static void ath10k_pci_hif_power_down(struct ath10k *ar) struct ath10k_pci *ar_pci = ath10k_pci_priv(ar); ath10k_pci_stop_intr(ar); + ath10k_pci_device_reset(ar); ath10k_pci_ce_deinit(ar); if (!test_bit(ATH10K_PCI_FEATURE_SOC_POWER_SAVE, ar_pci->features)) |