dmaengine: dmatest: Fix dmatest waiting less when interrupted

[ Upstream commit e87ca16e99118ab4e130a41bdf12abbf6a87656c ]

Change the "wait for operation finish" logic to take interrupts into
account.

When using dmatest with idxd DMA engine, it's possible that during
longer tests, the interrupt notifying the finish of an operation
happens during wait_event_freezable_timeout(), which causes dmatest to
cleanup all the resources, some of which might still be in use.

This fix ensures that the wait logic correctly handles interrupts,
preventing premature cleanup of resources.

Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202502171134.8c403348-lkp@intel.com
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20250305230007.590178-1-vinicius.gomes@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index f696246f57fdb3734523930610bc650c52872fdb..0d8d01673010c2a503ed9108c7e3c27feef6eb89 100644 (file)
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -828,9 +828,9 @@ static int dmatest_func(void *data)
                } else {
                        dma_async_issue_pending(chan);
 
-                       wait_event_freezable_timeout(thread->done_wait,
-                                       done->done,
-                                       msecs_to_jiffies(params->timeout));
+                       wait_event_timeout(thread->done_wait,
+                                          done->done,
+                                          msecs_to_jiffies(params->timeout));
 
                        status = dma_async_is_tx_complete(chan, cookie, NULL,
                                                          NULL);