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| author | Takashi Iwai <tiwai@suse.de> | 2016-02-08 17:26:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-17 12:31:00 -0800 |
| commit | 925249d5172a31d7d430fdf364fc9229223c7942 (patch) | |
| tree | eb83232c7dbdb3521a51eae640759c406d676861 /tools/perf/scripts/python/bin | |
| parent | ce60478a9959a8e1d1dcc70325e72678e78d85c5 (diff) | |
ALSA: timer: Fix race at concurrent reads
commit 4dff5c7b7093b19c19d3a100f8a3ad87cb7cd9e7 upstream.
snd_timer_user_read() has a potential race among parallel reads, as
qhead and qused are updated outside the critical section due to
copy_to_user() calls. Move them into the critical section, and also
sanitize the relevant code a bit.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions