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| author | Peter Hurley | 2014-02-10 02:59:07 +0100 |
|---|---|---|
| committer | Marcel Holtmann | 2014-02-14 22:39:29 +0100 |
| commit | 1c64834e0624c61735308138e67cc3b527f41621 (patch) | |
| tree | 912156866fbaa316a2197f261646737f95a88e57 /include/net/codel.h | |
| parent | Bluetooth: Exclude released devices from RFCOMMGETDEVLIST ioctl (diff) | |
| download | kernel-qcow2-linux-1c64834e0624c61735308138e67cc3b527f41621.tar.gz kernel-qcow2-linux-1c64834e0624c61735308138e67cc3b527f41621.tar.xz kernel-qcow2-linux-1c64834e0624c61735308138e67cc3b527f41621.zip | |
Bluetooth: Release rfcomm_dev only once
No logic prevents an rfcomm_dev from being released multiple
times. For example, if the rfcomm_dev ref count is large due
to pending tx, then multiple RFCOMMRELEASEDEV ioctls may
mistakenly release the rfcomm_dev too many times. Note that
concurrent ioctls are not required to create this condition.
Introduce RFCOMM_DEV_RELEASED status bit which guarantees the
rfcomm_dev can only be released once.
NB: Since the flags are exported to userspace, introduce the status
field to track state for which userspace should not be aware.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Tested-By: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'include/net/codel.h')
0 files changed, 0 insertions, 0 deletions