tree 37e0f74ceba884d3a2af13b8bf7e8d2a412619c9
parent 1a21576562507b2b10b9aa53555857868fe51c94
author Arnd Bergmann <arnd@arndb.de> 1388664469 +0100
committer Takashi Iwai <tiwai@suse.de> 1389711687 +0100

sound: oss: vwsnd: avoid interruptible_sleep_on

Interruptible_sleep_on is racy and we want to remove it. This replaces
the use in the vwsnd driver with an open-coded prepare_to_wait
loop that fixes the race between concurrent open() and close() calls,
and also drops the global mutex while waiting here, which restores
the original behavior that was changed during the BKL removal.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>