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| author | Takashi Iwai <[email protected]> | 2014-05-02 16:17:06 +0000 |
|---|---|---|
| committer | Takashi Iwai <[email protected]> | 2014-05-02 16:17:06 +0000 |
| commit | 1ee23fe07ee83a38ecee927e701f762888ada942 (patch) | |
| tree | f8af5087956bef2a461410b49584dc3bd2cd988c /tools/perf/scripts/python/failed-syscalls-by-pid.py | |
| parent | ALSA: usb-audio: Save mixer status only once at suspend (diff) | |
| download | kernel-1ee23fe07ee83a38ecee927e701f762888ada942.tar.gz kernel-1ee23fe07ee83a38ecee927e701f762888ada942.zip | |
ALSA: usb-audio: Fix deadlocks at resuming
The recent addition of the USB audio mixer suspend/resume may lead to
deadlocks when the driver tries to call usb_autopm_get_interface()
recursively, since the function tries to sync with the finish of the
other calls. For avoiding it, introduce a flag indicating the resume
operation and avoids the recursive usb_autopm_get_interface() calls
during the resume.
Reported-and-tested-by: Bryan Quigley <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions