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media: cx88: Add missing unmap in snd_cx88_hw_params()

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In error path, add cx88_alsa_dma_unmap() to release
resource acquired by cx88_alsa_dma_map().

Fixes: b2c75abde0 ("[media] cx88: drop videobuf abuse in cx88-alsa")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Haoxiang Li 2025-12-10 10:53:48 +08:00 committed by Hans Verkuil
parent b8bf939d77
commit dbc527d980
1 changed files with 3 additions and 1 deletions
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4
drivers/media/pci/cx88/cx88-alsa.c
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@ -483,8 +483,10 @@ static int snd_cx88_hw_params(struct snd_pcm_substream *substream,
ret = cx88_risc_databuffer(chip->pci, &buf->risc, buf->sglist,
chip->period_size, chip->num_periods, 1);
if (ret < 0)
if (ret < 0) {
cx88_alsa_dma_unmap(chip);
goto error;
}
/* Loop back to start of program */
buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);