diff mbox series

[v4,03/17] PCI: epf-test: Fix DMA transfer completion initialization

Message ID 20230330085357.2653599-4-damien.lemoal@opensource.wdc.com (mailing list archive)
State Superseded
Headers show
Series PCI endpoint fixes and improvements | expand

Commit Message

Damien Le Moal March 30, 2023, 8:53 a.m. UTC 
Re-initialize 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.

Fixes: 8353813c88ef ("PCI: endpoint: Enable DMA tests for endpoints with DMA capabilities")
Cc: stable@vger.kernel.org
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/pci/endpoint/functions/pci-epf-test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 0f9d2ec822ac..d65419735d2e 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) {