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(parent: 87123fc) | patch
USB: cdc-acm: fix runtime PM imbalance at shutdown
authorJohan Hovold <jhovold@gmail.com>
Mon, 26 May 2014 17:23:45 +0000 (19:23 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 27 May 2014 22:04:09 +0000 (15:04 -0700)
commit8d5d80387fd70779236274022c20b564dfa405c9
tree46a9bbf25625e66c77922f08e61ed68ebabc2374tree | snapshot
parent87123fcccaf0a7392ab2b074b0206c3a1dd74394commit | diff
USB: cdc-acm: fix runtime PM imbalance at shutdown

Make sure only to decrement the PM counters if they were actually
incremented.

Note that the USB PM counter, but not necessarily the driver core PM
counter, is reset when the interface is unbound.

Fixes: 8a89eeb76a61 ("USB: additional power savings for cdc-acm devices
that support remote wakeup")

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-acm.c diff | blob | history
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