[PATCH next] ALSA: rme32: Fix serialization in snd_rme32_capture_adat_open()

Dan Carpenter
2025-09-03T05:52:29Z

We accidentally deleted the wrong line of code when we did the
conversion to guard() locks. If the rme32->capture_substream has
already been set we should return -EBUSY.

Fixes: 8bb75ae244c5 ("ALSA: rme32: Use guard() for spin locks")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
sound/pci/rme32.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index 123dddcb6972..ca9bbf554650 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -936,7 +936,7 @@ snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)

scoped_guard(spinlock_irq, &rme32->lock) {
if (rme32->capture_substream != NULL)
- spin_unlock_irq(&rme32->lock);
+ return -EBUSY;
rme32->capture_substream = substream;
}

--
2.47.2