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| author | Takashi Iwai <tiwai@suse.de> | 2014-05-02 18:17:06 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-05-02 18:17:06 +0200 |
| commit | 1ee23fe07ee83a38ecee927e701f762888ada942 (patch) | |
| tree | f8af5087956bef2a461410b49584dc3bd2cd988c /sound/usb/endpoint.c | |
| parent | 1c53e7253ed8769a00afa0f06777d731dbe1ba6f (diff) | |
| download | linux-1ee23fe07ee83a38ecee927e701f762888ada942.tar.bz2 | |
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 <gquigs@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/endpoint.c')
0 files changed, 0 insertions, 0 deletions