cdc-acm: fix race between callback and unthrottle

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commit 36e59e0d70 upstream.

Abn URB may be may marked free only after the buffer has been
processed or there is a small window during which it could
be submitted on another CPU and overwrite an unprocessed buffer

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

...

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Oliver Neukum 2015-03-20 09:24:24 +01:00 • committed by Ben Hutchings

parent 22131d1004

commit ade9234593

1 changed files with 10 additions and 2 deletions

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drivers/usb/class/cdc-acm.c

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