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| author | Felipe Balbi <balbi@ti.com> | 2014-04-23 09:58:26 -0500 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-07-11 13:33:33 +0100 |
| commit | 87520218746b8d973670e37237666f174590898c (patch) | |
| tree | 47d80c86cb14fc43d58d6b697f718c80541a960c /include | |
| parent | 0efda016ac2fb3db57ee19f5df746eca4250955d (diff) | |
| download | kernel-common-87520218746b8d973670e37237666f174590898c.tar.gz kernel-common-87520218746b8d973670e37237666f174590898c.tar.bz2 kernel-common-87520218746b8d973670e37237666f174590898c.zip | |
bluetooth: hci_ldisc: fix deadlock condition
commit da64c27d3c93ee9f89956b9de86c4127eb244494 upstream.
LDISCs shouldn't call tty->ops->write() from within
->write_wakeup().
->write_wakeup() is called with port lock taken and
IRQs disabled, tty->ops->write() will try to acquire
the same port lock and we will deadlock.
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Reported-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Tested-by: Andreas Bießmann <andreas@biessmann.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context, indentation]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions