diff options
| author | Damien Le Moal | 2023-04-15 11:35:28 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-07-23 13:49:36 +0200 |
| commit | bcd276f1431e058bafcbb5a85cc0034607f9db1b (patch) | |
| tree | 3af2c319c399c747e379c5f5d9060f36c7f225f4 /drivers/pci | |
| parent | cf0d7b72707dcaa21e4c685721072d1234a87162 (diff) | |
PCI: epf-test: Fix DMA transfer completion initialization
commit 4aca56f8eae8aa44867ddd6aa107e06f7613226f upstream.
Reinitialize the transfer_complete DMA transfer completion before calling
tx_submit(), to avoid seeing the DMA transfer complete before the
completion is initialized, thus potentially losing the completion
notification.
Link: https://lore.kernel.org/r/20230415023542.77601-4-dlemoal@kernel.org
Fixes: 8353813c88ef ("PCI: endpoint: Enable DMA tests for endpoints with DMA capabilities")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index f0c4d0f77453..bf12354b18d5 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -151,10 +151,10 @@ static int pci_epf_test_data_transfer(struct pci_epf_test *epf_test, return -EIO; } + reinit_completion(&epf_test->transfer_complete); tx->callback = pci_epf_test_dma_callback; tx->callback_param = epf_test; cookie = tx->tx_submit(tx); - reinit_completion(&epf_test->transfer_complete); ret = dma_submit_error(cookie); if (ret) { |