From 863f50d583445c3c8b28a0fc4bb9c18fd9656f41 Mon Sep 17 00:00:00 2001 From: Haoxiang Li Date: Wed, 10 Dec 2025 16:52:30 +0800 Subject: [PATCH] media: cx25821: Add missing unmap in snd_cx25821_hw_params() In error path, add cx25821_alsa_dma_unmap() to release the resource acquired by cx25821_alsa_dma_map() Fixes: 8d8e6d6005de ("[media] cx28521: drop videobuf abuse in cx25821-alsa") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li Signed-off-by: Hans Verkuil --- drivers/media/pci/cx25821/cx25821-alsa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/pci/cx25821/cx25821-alsa.c b/drivers/media/pci/cx25821/cx25821-alsa.c index a42f0c03a7ca8..f463365163b7e 100644 --- a/drivers/media/pci/cx25821/cx25821-alsa.c +++ b/drivers/media/pci/cx25821/cx25821-alsa.c @@ -535,6 +535,7 @@ static int snd_cx25821_hw_params(struct snd_pcm_substream *substream, chip->period_size, chip->num_periods, 1); if (ret < 0) { pr_info("DEBUG: ERROR after cx25821_risc_databuffer_audio()\n"); + cx25821_alsa_dma_unmap(chip); goto error; } -- 2.47.3