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| author |   Takashi Iwai <tiwai@suse.de> | 2020-11-23 09:53:34 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-11-23 15:15:48 +0100 |
| commit | 43b81e84068d26d630b63fa877e682909a0102fe (patch) | |
| tree | ce23f626a7cdc49a67a539c6e2080e10279bce0b /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ALSA: usb-audio: Constify audioformat pointer references (diff) | |
| download | wireguard-linux-43b81e84068d26d630b63fa877e682909a0102fe.tar.xz wireguard-linux-43b81e84068d26d630b63fa877e682909a0102fe.zip | |
ALSA: usb-audio: Use atomic_t for endpoint use_count
The endpoint objects may be started/stopped concurrently by different
substreams in the case of implicit feedback mode, while the current
code handles the reference counter without any protection.
This patch changes the refcount to atomic_t for avoiding the
inconsistency. We need no reference_t here as the refcount goes only
up to 2.
Also the name "use_count" is renamed to "running" since this is about
actually the running status, not the open refcount.
Tested-by: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-29-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions