3.2.102-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Adam Goode <agoode@xxxxxxxxxx>
commit 21fd3e956ee8a307a06bc6e095f5767a00eb2a7e upstream.
snd_seq_event_dup returns -ENOMEM in some buffer-full conditions,
but usually returns -EAGAIN. Make -EAGAIN trigger the overflow
condition in snd_seq_fifo_event_in so that the fifo is cleared
and -ENOSPC is returned to userspace as stated in the alsa-lib docs.
Signed-off-by: Adam Goode <agoode@xxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
sound/core/seq/seq_fifo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/core/seq/seq_fifo.c
+++ b/sound/core/seq/seq_fifo.c
@@ -127,7 +127,7 @@ int snd_seq_fifo_event_in(struct snd_seq
snd_use_lock_use(&f->use_lock);
err = snd_seq_event_dup(f->pool, event, &cell, 1, NULL); /* always non-blocking */
if (err < 0) {
- if (err == -ENOMEM)
+ if ((err == -ENOMEM) || (err == -EAGAIN))
atomic_inc(&f->overflow);
snd_use_lock_free(&f->use_lock);
return err;
