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[ALSA] usb-audio: properly lock hwptr_done accesses
authorClemens Ladisch <clemens@ladisch.de>
Mon, 15 Aug 2005 06:25:50 +0000 (08:25 +0200)
committerJaroslav Kysela <perex@suse.cz>
Tue, 30 Aug 2005 06:45:50 +0000 (08:45 +0200)
USB generic driver
Take the substream lock when reading hwptr_done to avoid a race
condition with the updates in the URB callbacks.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

No differences found
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