alsa/0035-pcm-rate-hw_avail-must-not-be-negative-before-starti.patch
Takashi Iwai 84789a8f60 Accepting request 257835 from home:tiwai:branches:multimedia:libs
- Backport upstream fixes / enhancements: mostly small fixes
  spotted by coccinelle and oethers, the fixes for proper rewind
  support, a new DSD format support, hwdep definitions sync, and
  addition of PAZ00 UCM configs.
  0022-pcm-fix-snd_pcm_mmap_hw_avail-near-the-boundary.patch
  0023-pcm-fix-return-value-of-snd_pcm_share_slave_avail.patch
  0024-pcm-add-new-32-bit-DSD-sample-format.patch
  0025-dmix-actually-rewind-when-running-or-being-drained.patch
  0026-pcm-express-the-rewind-size-limitation-logic-better.patch
  0027-pcm-handle-negative-values-from-snd_pcm_mmap_hw_avai.patch
  0028-pcm-rate-use-the-snd_pcm_mmap_hw_avail-function.patch
  0029-pcm-null-use-the-snd_pcm_mmap_avail-function.patch
  0030-rate-handle-negative-values-from-snd_pcm_mmap_playba.patch
  0031-dsnoop-rewindable-and-forwardable-logic-was-swapped.patch
  0033-pcm-file-don-t-recurse-in-the-rewindable-and-forward.patch
  0034-pcm-route-Fix-the-bad-condition-always-false.patch
  0035-pcm-rate-hw_avail-must-not-be-negative-before-starti.patch
  0036-hwdep-add-missing-declaration-for-snd_hwdep_poll_des.patch
  0037-mixer-fixed-double-free.patch
  0038-pcm_file-fixed-missing-free.patch
  0039-sbase-fixed-missing-free.patch
  0040-rawmidi-close-handle-h.patch
  0041-pcm_share-fixing-missing-mutex-unlock.patch
  0042-simple_abst-null-check-for-lib.patch
  0043-socket-missing-socket-close.patch
  0044-pcm_hooks-null-check-for-h.patch
  0045-conf-return-negative-value-in-case-of-error.patch
  0046-control-return-negative-value-in-case-of-error.patch
  0047-pcm-return-negative-value-in-case-of-error.patch
  0048-mixer-Fix-missing-hctl-handle-free-in-snd_mixer_atta.patch

OBS-URL: https://build.opensuse.org/request/show/257835
OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/alsa?expand=0&rev=170
2014-10-21 07:48:48 +00:00

35 lines
1.1 KiB
Diff

From 048568bbea700dfd9921b40321f8d5aa7e5ef417 Mon Sep 17 00:00:00 2001
From: "Alexander E. Patrakov" <patrakov@gmail.com>
Date: Mon, 15 Sep 2014 20:17:47 +0600
Subject: [PATCH] pcm, rate: hw_avail must not be negative before starting the
stream
If it is, then it means most likely the driver problem, so we should
return error immediately instead.
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
src/pcm/pcm_rate.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/pcm/pcm_rate.c b/src/pcm/pcm_rate.c
index 736d5583cd4c..c76db25b1183 100644
--- a/src/pcm/pcm_rate.c
+++ b/src/pcm/pcm_rate.c
@@ -1069,7 +1069,10 @@ static int snd_pcm_rate_start(snd_pcm_t *pcm)
gettimestamp(&rate->trigger_tstamp, pcm->tstamp_type);
avail = snd_pcm_mmap_playback_hw_avail(rate->gen.slave);
- if (avail <= 0) {
+ if (avail < 0) /* can't happen on healthy drivers */
+ return -EBADFD;
+
+ if (avail == 0) {
/* postpone the trigger since we have no data committed yet */
rate->start_pending = 1;
return 0;
--
2.1.2